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A=1/2h (b1 + b2) Solve for b1 A=1/2h (b1 + b2) Solve for b1 I assume this is A = (1/2)(h)(b1 + b2); i.e., the h is in the numerator and not the denominator Multiply both sides by 2. 2A = (2*1/2)h(b1 + b2). 2*1/2 on the right side
asked by ryan on August 15, 2006 
simultaneous equations
Solve 2a + b = 3 4a  5b = 20 My attempt Multiply the first equation by 5 So, 10a + 5b = 15 4a  5b = 20 Add them together 14a = 35 Divide both sides by 14 a = 2.5 Substitute (I have done it with the second one) 10  5b = 20 Take
asked by hs on January 10, 2014 
Math
A student is trying to solve the set of two equations given below: Equation A: x + z = 6 Equation B: 2x + 4z = 1 Which of the following is a possible step used in eliminating the zterm? Multiply equation B by 4. Multiply equation
asked by Nikki on May 4, 2017 
Pre Cal.Check my work?
Solve the system of equations: x  y  z = 2; x + 2y  2z = 3; 3x  2y  4z = 5? well, you have: 1 xyz=2 2 x+2y2z=3 3 3x2y4z=5 multiply both sides of the equation 1 by 2: xyz=2 ===> 2x2y2z=4 add this by equation 2:
asked by David on March 30, 2009 
Algebra
The first step to solve for y in y/3= 6 + x is A) to subtract x from both sides of the equation. B) to subtract y/3 from both sides of the equation. C) to divide each term on both sides of the equation by 3. ******* D) to multiply
asked by katy on September 8, 2019

PLEASE HELP ME!!!
What is the first step in solving the problem, 3x8/12=9? A) Add 8 to both sides. B) Multiply by 12 on both sides. C) Divide by 3 on both sides. D) Subtract 9 on both sides.
asked by natalie on November 12, 2009 
algebra
Solve. x/91/7=26/63 STEP 1: The LCM is _________ To clear denominators, multiply each side of the equation by the LCM. _______/1 (x/91/7)=__________/1 multiply 26/63. STEP 2: Use the Distributive Property. _____/1 multiply x/9 
asked by sally on March 1, 2013 
Help 5!!!
5. Find the x and y intercepts of each linear equation. Be sure to write your answers as ordered pairs. y = 3x  6 6y = x + 2 On the second equation, change it to read y= ...,. Divide both sides of that equation by 6 to get the
asked by Margie on October 13, 2006 
MATH
1. 42 Add 5 to both sides, then add 3, then add (4) 3. 4
asked by Jallai on February 28, 2019 
Algebra
I don't understand how to do this problems: Solve for the variable r, C=2PIr (PI is the pi symbol thing then r is next to it) and this problem solve for the variable l, S=B+1/2Pl please help :) When you solve for a variable, you
asked by Avalon on November 18, 2006 
Math
The problem to solve is: (x+20)(x12)(x+4)>0 but I can't figure out how to do this right so I left off the >0 and tried to solve the equation. x+20 evaluates to x+20 x12 evaluates to x12 Multiplying x+20 by x12 is a classic
asked by Sabrina on September 24, 2010
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