# Solving Simultaneous equation Y=x-2 Y=x^2+3x-5

33,307 questions-
## Maths

Solving Simultaneous equation Y=x-2 Y=x^2+3x-5

*asked by Becky on May 12, 2014* -
## algebra

hi could you please take me through the steps of solving the simultaneous equation graphically thank you. y-x+4=0 y-8+x=0

*asked by lila on October 8, 2009* -
## Engineering

I need help solving the following simultaneous equations, for the values of Vo and a: 1.4 = Vo e^-32a 4 = Vo e^-6a I've never come across simultaneous equations like this (e is the base of natural logarithms, so perhaps taking logs of both sides might

*asked by Stuart on May 13, 2007* -
## Math

A particular Chemistry book costs $6 less than a particular Physics book. Two such Chemistry books and three such Physics books cost a total of $123. Construct two simultaneous equations and solve them using the substitution method. Show your working. I

*asked by anonymous on February 23, 2018* -
## Physics

Two events that are simultaneous in one frame of reference will be: A) simultaneous in all frames of reference B) simultaneous in another frame that is moving in the opposite direction C) simultaneous in another frame of reference that is moving in the

*asked by Jeff on January 12, 2010* -
## Mathematics

The value of a certain fraction becomes 1/5 if one is added to its numerator. If one is taken from its denominator, its value becomes 1/7. Find the fraction by setting up a pair of simultaneous equations and solving them

*asked by Jiskhaa on March 13, 2012* -
## exponential and logarithmic graphs question

hi, i desperately need help solving this question: Find the values of A and k if the general equation of the graph shown is y=Ae^kx where the graph goes through the points (-1,-4) and (-2,-10) do i solve it using simultaneous equations? because i have

*asked by elle on March 21, 2007* -
## Math

How do I solve this simultaneous equation 3x-2y=5 (1) 2y-5x=9 (2) I managed to find the value of x and that is -7 but I am having problems to substitute it's value in equation (1)

*asked by Vince on May 16, 2010* -
## System of equations

3x =2y = 17 2x-y =9 and 3x+y = 3 x+2y = -4 How do I do these?? 22Z 6Y These are simultaneous equations. You have a typo in #1. For the second set, just multiply equation 1 by 2, then subtract equation 2 from equation 1 (which will eliminate y), then solve

*asked by Gracie on August 21, 2006* -
## maths

solve the simultaneous equation 1/y + 1/x =5 .......(i ) 1/x - 1/y =1 ........(i i )

*asked by somay on April 25, 2016* -
## maths

Solve the following simultaneous equation: 8x+3y=23 6x+5y=9

*asked by nabiha on March 15, 2010* -
## math

solve the simultaneous equation 2x+2y=7 x^2-4y^2=8

*asked by fardeen on November 20, 2010* -
## asu prep

solve simultaneous equation 1/2x+2y=16 2x +1/2y=19

*asked by comfort on November 12, 2017* -
## math

solve the simultaneous equation 2y=3x-13 5x-6y=23

*asked by charlene on April 13, 2015* -
## Maths

To solve the simultaneous equation 1.4x + 3y = -1 2y - 3x = -12

*asked by Jeremiah on June 26, 2016* -
## math

answer this simultaneous equation please. 3a-b=9 2a+2b=14

*asked by Rhondi on October 15, 2008* -
## algebra

If dx=-18 and D=3 are the values of certain simultaneous equation in x and y. What is the value of y

*asked by Sonu on January 12, 2012* -
## Mathematics

Solve the simultaneous equation: x^2 + y^2 = 13 and x + 3y = -3

*asked by Grace on February 9, 2017* -
## maths

solve the following simultaneous equation: 5x+2y=29 x-y=-4 2x-y=-1 3x-y=2 5x+y=16 x-2y=1 5x+2y=16 -3x+4y=-7 3x+2y=19 5x-2y=5 7x-1/3-2(7y+3)/5=10/3 5x+2/4+3y-2/5=16/5

*asked by JERMAINE on February 11, 2010* -
## Math

please answer this simultaneous equation. 3a-b=9 2a+2b=14

*asked by Rhondi on October 15, 2008* -
## Mathematics

simultaneous equation x squared = 4-y x = y+2

*asked by India on April 20, 2012* -
## Math

x^2 + 9y^2 = 37 x - 2y = -3 simultaneous equation by elimination

*asked by Princess on December 11, 2012* -
## maths algebra

HI STEVE, THANKS for your reply back it was the wrong answer the one you worked, yes a hard question, here is an example of simultaneous questions. x-2/3 + y-1/4 =13/12 (1) 2-x/2 + 3+y/3 =11/6 (2) first step is to get rid of fractions. in equation (1) the

*asked by mohammad on November 13, 2014* -
## Math

9(x+2)(x+1)-2(x+2)-4(x+1)=0 I'm in the middle of solving an equation. I know that you have to FOIL but how did they get 9(x^2+3x+2)-(4x+4)=0 ? I thought you distribute the 9 through (x+2)(x+1). and why is it (4x+4) instead of (4x-4) because -4 x 1 = -4

*asked by Beth on June 9, 2013* -
## math

how do you solve that pair of simultaneous equation^2=4-y x=y+3?

*asked by Cathrine on January 25, 2010* -
## Math

Solve the simultaneous equation 1/p minus 1/q = 3/2 1/p plus 1/q = 4

*asked by Nicole on March 18, 2015* -
## math

how do you solve that pair of simultaneous equation^2=4-y x=y+3?

*asked by Cathrine on January 25, 2010* -
## Maths

Can you pliz help me solve the following simultaneous equation 3x-y=2 and 3y+9x=4

*asked by Smangele Phakathi on September 20, 2013* -
## math

how do you solve that pair of simultaneous equation^2=4-y x=y+3?

*asked by Cathrine on January 25, 2010* -
## math

solve the following pair of simultaneous equation 5x-2y=14, 2x+2y=14

*asked by nwosu miracle on November 6, 2016* -
## maths

solve the following simultaneous linear equation: -5x+6y=44 9x+7y=-8

*asked by nabiha on March 15, 2010* -
## math

the sum of the ages of two siblings is 23 and the difference between their ages is 7. if frank is the older brother of beth, determine their ages by creating a pair of simultaneous equations and solving them. this is killing me i have been working on it

*asked by lucy on September 10, 2015* -
## Math

Simultaneous equation and surds 5x-3y=41 (7route2)x+(4route2)y=82

*asked by Tom on October 2, 2010* -
## Mathematics

Use Elimination Method To Solve This Simultaneous Equation 5V=11+3U 2U+7V=3

*asked by Francisca on January 22, 2019* -
## MATHS

SOLVE THIS SIMULTANEOUS EQUATION USING SUBSTITUTION METHOD 3X+Y=11 AND 2X-Y=4

*asked by DARLINGTON on February 2, 2016* -
## Maths

solve simultaneous equation by substitution method 3x+2y=12, 4x-3y=1

*asked by Esteem on December 1, 2018* -
## Math

Solve the simultaneous equation P^2-Q^2=40 Q+P=10 Using the substitution method

*asked by Zulaiykherh on January 3, 2017* -
## algebra

solve the following simultaneous equation algebraically,for a and b 8a+5b=23 12a+3b=12

*asked by walter on October 23, 2007* -
## Math

Solve the simultaneous equation n/4-m/6=-1 Using elimination method

*asked by Zulaiykherh on January 3, 2017* -
## Maths

Solve the following simultaneous equation by substitution method 5x+y=35 & 3x-2y=14

*asked by Anonymous on February 4, 2015* -
## Math

solve simultaneous equation,* *4m=(9-n)²* *4n=(3-m)²* Show workings

*asked by Mjay on June 7, 2018* -
## Math

Solve the simultaneous equation n/4-m/6=-1 m/5+n/2=10 Using elimination method

*asked by Rukayyerh on January 8, 2017* -
## math

solve the simultaneous equations to find the coordinates of the point of intersection for the pair of lines of the simultaneous equations. Then check the answer by graphing the equations 3x-y=-4 2x-y=0

*asked by Lauren on October 16, 2010* -
## equations of tangents and normals

hi, i'd really appreciate some help solving this question! I am completely at loss here :/ The question is to: Find the equation of the normal to y=loge(x+2) which is parallel to the line with equation y+3x-5=0 I am fine at solving these sorts of equations

*asked by elle on May 20, 2007* -
## 5a-2b=14 , 2a+2b=14

Use the method of elimination to solve the following pairs of simultaneous equation 8y+4z=7 6y-8z=41

*asked by Gabriel on March 6, 2016* -
## math

use the method of substitution to solve the following pairs of simultaneous equation. 2m+n=0,m+2n=3

*asked by joel on January 29, 2017* -
## Math

How is solving a rational equation different from solving linear equations like 3x+5=7x-2?

*asked by Hannah on December 14, 2017* -
## maths

Solve simultaneous equation. log2(x-14y)=3 logx-log(y+1)=1

*asked by muleya on August 13, 2018* -
## maths

simultaneous equations x + 2y = 4 3x - 4y = 7 x=3 and y = 1/2 i need to explain how i got this answer and do not know how to do that? i am confused about how you got this answer what working out is it the object in "elimination" is to get the coefficients

*asked by Vicki on April 15, 2007* -
## Math

Explain how solving a linear inequality is similar to solving a linear equation. Explain how solving a linear is different from solving a linear equation.

*asked by Cindy on February 8, 2011* -
## math simultaneous equation with surds

ive got quite far but im stuck, can you go through each stage so i can check. simultaneous equation with surds 5x-3y=41 (7root2)x+(4root2)y=82 thanks for the help

*asked by jim on October 1, 2010* -
## Maths

solve the following pair of simultaneous equation: (x/a)+(y/b)=1 (x/b)+(y/a)=1 can someone help please?i have no idea how to solve it =( x/(ab) + y/b^2 = 1/b x/(ab) + y/a^2 = 1/a Subtract one from the other y(1/b^2 - 1/a^2) = 1/b - 1/a y(1/b + 1/a)(1/b -

*asked by Emma on July 11, 2007* -
## Chemistry

I need help in solving this problem: A certain substance has a heat of vaporization of 42.46 kJ/mol. At what Kelvin temperature will the vapor pressure be 5.00 times higher than it was at 291 K? I know that I have to use the Clausius-Clapeyron equation,

*asked by Confused on February 24, 2013* -
## college algebra

compare and contrast the ways in which solving a linear inequality is similar / dissimilar to solving a linear equation please explain

*asked by Debra on September 9, 2014* -
## MATH URGENT

a. Solve a – 9 = 20 b. Solve b – 9 > 20 c. How is solving the equation in (a) similar to solving the inequality in (b)? d. How are the solutions different? I don't know how to do this i forgot ... could u help (Steve, or Mrs.Sue, or Writeteacher plz

*asked by Gabby on January 18, 2013* -
## physics

Can someone please explain to me why or how this statement is true? I don't understand it.. Two events that are simultaneous in one inertial frame of reference will not necessarily be simultaneous in any other inertial frame of reference. Thank you

*asked by kayla on February 11, 2013* -
## Algebra

Explain the difference between solving a linear equation graphically and solving a system of equations graphically. How would I go about doing this?

*asked by Suzanne on February 18, 2009* -
## math algebra

COULD SOME OF WITH DEGREE IN MATHS HELP ME TO SOLVE THIS SIMULTANEOUS EQUATION PLEASE, PLEASE ? I HAVE RIED DIFFERENT METHODS BUT IT CANNOT GET THE CORRECT ANSWER, AS IN THE BOOK. X-3/4 -Y-2/5 = -1/4 (1) 4-X/3+ 3-Y/2 = - 13/20 (2) 5x-15-4y+8= -1 5x-4y=17-1

*asked by mohammad on November 12, 2014* -
## Math

How is solving a rational equation the same as solving any other equation?

*asked by Hannah on December 14, 2017* -
## physics (elastic collision)

A ball of mass .44 kg and speed of 4.5 m/s collides head-on with a .22 kg ball at rest. Assuming perfect elasticity, what is the speed and direction of each ball afterwards? I know that the momentum is conserved here and since I am solving fo two

*asked by sean on February 1, 2007* -
## Math

Explain how solving a linear inequality is similar to solving a linear equation. Explain how solving a linear inequality is different from solving a linear equation.

*asked by Cindy on February 8, 2011* -
## Calculus

Solve the differential equation dy/dx = -xe^y and determine the equation of the curve through P(1,2) I tried solving the differential equation and I get y = log(x^2/2 + C). Is this correct? Now I forgot how to find the equation. Thank you!

*asked by Robert on August 6, 2012* -
## Math

ok so i'm kinda sort of confused... I had this for a equation X^2 + 4X - 1 = 0 and then I was like zero??? zero... really zero... hmm... X^2 + 4X - 1 = dy ???????? That zero does represent when Y equals zero correct??? this allows us to solve for X

*asked by Kate on January 3, 2010* -
## MATH

Solving by graphing DQ 1 Solving by substitution Solving by elimination Which method do you think would be best to solve this system? y=10x-8 y=1/2x+5

*asked by Anonymous on October 19, 2010* -
## Maths

Solve this simultaneous equation: x+3y=2 and x/3+y/2 =1 Please explain step by step so i understand for future reference. Thankyou x

*asked by Anonymous on November 6, 2015* -
## mathematics for management

helo sir/madam can u help me to solve this problem solve the following simultaneous equation logx Y+logy X=5/2 xy=64

*asked by shiha on April 15, 2014* -
## maths

helo sir/madam can u help me to solve this problem solve the following simultaneous equation logx Y+logy X=5/2 xy=64

*asked by fizz on April 15, 2014* -
## Math

How do you do this Simultaneous Equation? 3x+4y=14 x+y=3 Please give me the step by step solution. Thanks a lot!

*asked by teg1901 on October 21, 2010* -
## Algebra

Solving Linear Equations and Inequalities Solve by eliminating x (this is solving 3 linear equations) then substitute to the other two equation x + y + 5z =2 (1) 4x - 3y + 5z =3 (2) 3x - 2y + 5z=1 (3) my teacher gave me the answer she said the solution set

*asked by Clyde on April 25, 2016* -
## Algebra I DONT KNOW HOW TO DO 3 VARIABLES

Solving Linear Equations and Inequalities Solve by eliminating x (this is solving 3 linear equations) then substitute to the other two equation x + y + 5z =2 (1) 4x - 3y + 5z =3 (2) 3x - 2y + 5z=1 (3) my teacher gave me the answer she said the solution set

*asked by Clyde on April 25, 2016* -
## algebra (check answers)

1. what equation represents the following word sentence? the quotient of a number b and 0.3 equals negative 10 i think it's b/0.3 = -10 2. which equation is equivalent to the following equation? -3/4x + 1/8 = -3/8 a. -3/4x = -3/8 - 1/8 b. -3/4x = -3/8 +

*asked by teaopi on December 15, 2015* -
## ks maths

2x - 4y = 12 3x + 2y = 10 whats the answer Do you know how to solve simultaneous equations? Multiply equation (2) by 2, then add eqution 1 to eqution 2. That process gets rid of the y term. Then solve for x. Substitute the value of x into either equation

*asked by Me on July 15, 2006* -
## science

Two events that are simultaneous in one inertial frame of reference will not necessarily be simultaneous in any other inertial frame of reference. Explain.

*asked by Lisa on April 18, 2019* -
## Physics

Two events that are simultaneous in one inertial frame of reference will not necessarily be simultaneous in any other inertial frame of reference. Explain.

*asked by HI on July 7, 2018* -
## math

The area of the wall you are going to paint is 50 feet2. If the width is half the height, what are the dimensions of the wall? In answering this problem follow the steps below: 1. Represent the height as ‘x’ and then write the width in terms of x (for

*asked by Jennifer on January 2, 2012* -
## Math

Solve the simultaneous equation x+y=1 x squared + y squared=25

*asked by Greg on December 8, 2007* -
## pre algebra

How do I solve this equation the find te slope of the line? Please show me the steps in solving this equation.

*asked by sherry on February 10, 2010* -
## Math

Julie is solving the equation x2 + 6x + 9 = 0 and notices that the discriminant b2 - 4ac has a value of 0. This tells her that the equation has

*asked by Jack on October 23, 2012* -
## math

I need help solving this equation please. Use the qudratic formula to find any x-intercepton the graph of the equation. Y=3x^2+9-1

*asked by Sam on April 24, 2013* -
## MATH

Julie is solving the equation x2 + 6x + 9 = 0 and notices that the discriminant b2 - 4ac has a value of 0. This tells her that the equation has...

*asked by LINDSEY on May 16, 2013* -
## Math

7d-4 (d+8) = -8 ??? When I did this equation I got 8=d I know I did something wrong. I just don't know any other way to do it. I did basic equation-solving rules and got his answer. Help?

*asked by Andrey on January 6, 2015* -
## Alg2/Trig

How would I go about solving this equation algebraically? Find the equation of the parabola y=ax^2 + bx+c that passes through the given points. (2,0) (3,-1) (4,0) Thanks.

*asked by Chris on March 5, 2009* -
## math 2

Julie is solving the equation 3x2 + 5x + 15 = 0 and notices that the discriminant b2 - 4ac has a value of -155. This tells her that the equation has

*asked by Anonymous on May 5, 2013* -
## maths

I've to solve the following absolute value equation 8|w-7|=72. I solved the equation and the answers I got were -2 and 16. However the problem is that when I'm checking the equation with the answers it's not coming right. I.E. 8|16-7|=72 8|9| = 72 8(9)= 72

*asked by bindiya farswani on January 30, 2010* -
## Math

having trouble solving equation 8+3x6-4-1=13 can anyone help we have tried everything and it's not working out for me is that 3x or 3*6 3*6 Are you sure you put the right equation? yes. 8+3*6-4-1=13 what do the instructions say? Is this a grouping problem?

*asked by Cory on November 2, 2006* -
## Algebra

I need help solving an equation Solve the following equation for a. Please show all of your work. C = 1/6 (10b-7a)

*asked by Rebecca on December 18, 2010* -
## maths pls help

1. Solve the following simultaneous equations: log2 xy = 7 log2 (x^2/y) = 5 2. If log y x =a and log z x=b where x is not equal to 1, express the following in terms of a and b: logy (yz) Solve the following simultaneous equations: y = 2 log3 x y+1 = log3

*asked by Claire on November 21, 2007* -
## Algebra I

In planning for a new item, a manufacturer assumes that the number of items produced x and the cost in dollars C of producing these items are related by a linear equation. Projections are that 100 itmes will cost $10,000 to produce and that 300 items will

*asked by Katie on August 21, 2007* -
## Calculus

Hello, I would greatly appreciate any help that I can have with the following calculus question below. It has to do with separable differential equations. I'm also going to explain what I've done so far, so please bear with me (but honestly I don't think

*asked by Stephen on April 16, 2017* -
## algebra attn Reiny

Thanks for your help with the solving of the three equations! Yes, it was a typo. I just finished solving it a long way, solving for the 1st 2 equations then the 2nd and 3rd and plugging in variables...etc. etc. Your way gave the same answer, but quicker,

*asked by Terri on February 24, 2009* -
## math

I am getting difficulties by doin this homework.plzzzz can u hel pme;Solve this simultaneous equation;1/3(x+2)-1/4(y-1)=1,5X=4Y(B)SOLVE TO 2 DECIMAL PLACES'x-15/x=12. The second number am not sure of my calcalations;The point (x,y)is transformed by the

*asked by nellyna on August 23, 2007* -
## Math

a.) Solve a - 9 = 20 b.) Solve b - 9 > 20 c) How is solving the equation in part a similar to solving the inequality in part b? d.) How are the solutions different?

*asked by Jenny on January 17, 2014* -
## MATH

a.) Solve a - 9 = 20 b.) Solve b - 9 > 20 c) How is solving the equation in part a similar to solving the inequality in part b? d.) How are the solutions different?

*asked by Cindy on January 17, 2014* -
## math

a. Solve a - 9 = 20 b. Solve b - 9 > 20 c. How is solving the equation in part a similar to solving the inequality in part b? d. How are the solutions different?

*asked by victoria on December 19, 2013* -
## math prob:(

a. Solve a – 9 = 20 b. Solve b – 9 > 20 c. How is solving the equation in part a similar to solving the inequality in part b? d. How are the solutions different?

*asked by Princess Anna on January 22, 2014* -
## Math

In the equation ax^2+bx+c=0, one root is the square of the other. Without solving the equation, prove that c(a-b)^3=a(c-b)^3

*asked by Adriana on September 11, 2011* -
## math

when solving the exponential equation, 2^2x-1=16 what do I do first? do I convert to a log equation?

*asked by Sanya on October 27, 2008* -
## Chemistry

How would you go about solving an equation like this when all they give you is a equilibrium equation?: Given the standard free energies of formation in Appendix B in the textbook, what is the value of E ^\circ for the cell reaction?

*asked by Claire on June 21, 2012* -
## Chemistry

How would you go about solving an equation like this when all they give you is a equilibrium equation?: Given the standard free energies of formation in Appendix B in the textbook, what is the value of E ^\circ for the cell reaction?

*asked by Claire on June 21, 2012* -
## Trigonometry

"Sketch the graph of y=tan(x/2) By solving the equation x/2=-pi/2 x=- pi and the equation x/2=pi/2 x=pi..." Before I go any further, I need to understand where these equations came from. Where does the pi come from out of thin air? What becomes of the

*asked by Ellyn on January 24, 2010*

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