# Math

1. Solve the equation. -6g = 42

a. g = 7
b. g = -7
c. g = 252
d. g = -252

2. Solve the equation. x/8 = 16

a. x = 128
b. x = 24
c. x = 8
d. x = 2

3. Solve the equation. 12m = 14.4

a. m = 120
b. m = 12
c. m = 1.2
d. m = 0.12

4. Solve the equation. x/3 = -15

a. x = 45
b. x = -45
c. x = 3
d. x = -3

5. Select all of the equations that have a solution of 4. (choose only 2)

a. 5x = 20

b. 8x = -32

c. -4x = 16

d. x/2 = 2

e. x/4 = 16

1. 👍 0
2. 👎 0
3. 👁 591
1. I don't understand any of this which is why I didn't pick answers for you guys to check.

1. 👍 0
2. 👎 0
2. You just have to remember that dividing a number by itself gives a quotient of 1. When it says "solve for x" that means you want to find the value of x all by itself.

SO, if you have

-6g = 42

You just need to divide by the -6 to get g all by itself. Since -6g = 42,

-6g/-6 = 42/-6
(-6/-6)g = -7
g = -7

Then you can check your answer by multiplying by -6 to make sure you get the same original values:

-6g = -6(-7) = 42.

#2 is the same, but instead of dividing, you multiply to get rid of the fraction

x/8 = 16
(x/8)*8 = 16*8
x(8/8) = 128
x = 128

#3 and 4 are just the same, using different numbers.

For #5, just replace every x with a 4 and see whether the statement is true.

5x=20
5(4) = 20
20 = 20
so, yes. x=4 is a solution to that equation.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### math

(1)Is the Equation true, false, or open? 4y + 8 = 6y + 3 A. True; the expressionas are the same for all values of variables B. False; the expressions are never the same ****** C. Open; there is a varible (12)Which equation is an

2. ### algebra

(1) Is the equation true false or open? 9p + 8 = 10p + 7 A. open;there is a variable ***** B. true;the expressions are all the same for all values of the variiables C. false;the expressions are never the same (12) Which equation

1. Solve the system of equations y=2x^2-3 y=3x-1 a)no solution b)(-1/2,5),(2,-5/2) c)(-1/2,-5/2),(2,5)**** d)(1/2,5/2),(2,5) 2. How many real number solutions are there to the equation 0=-3x^2+x-4? a)0 ***** b)1 c)2 d)3 3.solve

4. ### How do I do this.?(Math.)

Use the Substitution method to solve the system of equations. y - 2x = -5 3y - x = 5 Solve one of the equations for x or y. Let's solve the first one for y: y - 2x = -5 y = 2x - 5 Now let's substitute 2x - 5 for y in the second

1. ### Algebra

To solve the system of equations, which expression could be substituted for x into the first equation? 3x-5y=14 x+4y=10 a)10-4y b)4y+10 c)(1/4)x+(5/2) d)(-1/4)x+(5/2) I have another problem just like this one so if you could

2. ### pre algebra

1. Solve the equation. –9v – 5 = –95 (1 point) 17 11 10 –10 2. Solve the equation. x over four – 5 = –8 (1 point) –27 –12 –7 12 3. Solve the equation. p over five + 6 = 10 (1 point) 44 30 20 –20 4. Solve the

1) -5g-6 for g = -2 2) Write an algebraic expression for the sum of 3 Coins and c Coins 3) What Value of x is a solution to the equation? x-2 = 16 4) use mental math to solve the equation. z/-12 = -5 5) estimate the solution of

4. ### Math

Solve the equation. 3x - 3 = -18 A. x = -7 B. x = -5 C. x = -3 D. x = 5 2. Solve the equation. r/2 - 6 = 14 A. r = 40 B. r = 34 C. r = 20 D. r = 16 3. Solve the equation. 12 + 4m = 24 A. m = 9 B. m = 8 C. m = 3 D. m = -6 There are

1. ### math

(1) Is the equation true false or open? 9p + 8 = 10p + 7 A. open;there is a variable ***** B. true;the expressions are all the same for all values of the variiables C. false;the expressions are never the same (12) Which equation

2. ### algebra

Solve the equation using the zero-product property. -9n(5n-5) a. -1/9, 1 b. 0,1***** c. -1/9,-1 d. 0,-1 Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2-6=x a. x=2,3 b. x=-2,3

3. ### ALGEBRA 1!PLZ HELP!

Use the Substitution method to solve the system of equations. y - 2x = -5 3y - x = 5 Solve the first equation for y. y = 2x-5 Substitute that for y in the second equation and solve for x. Then use the value of x to substitute back

4. ### math algebra

1. Solve the equation. –9v – 5 = –95 (1 point) 17 11 10 –10 2. Solve the equation. w over four – 4 = 3 (1 point) –4 28 3 11 3. Solve the equation. p over five + 6 = 10 (1 point) 44 30 20 –20 4. Solve the equation.