Question

What value of x is in the solution set of 3(x – 4) = 5x + 2?
оооо.

Answer 1

x=-7

Explanation:

3(x-4)=5x+2 (First distribute)

3x-12=5x+2 (Then, subtract 3x from both sides)

-12=2x+2 (Then subtract 2 from both sides)

-14=2x (Then divide by 2)

-7=x (You are done)

x=-7

Answer 2

x = -7

Explanation:

3(x – 4) = 5x + 2

Distribute

3x-12 = 5x+2

Subtract 3x from each side

3x-12-3x = 5x-3x+2

-12 = 2x+2

Subtract 2 from each side

-12-2 = 2x+2-2

-14 = 2x

Divide by 2

-14/2 = 2x/2

-7 =x