Question

What is the solution: -3(x+4) = 4(x-10)

Answer 1

x=4

Explanation:

-3(x+4)=4(x-10)

-3x-12=4x-40

+3x . +3x

-12=7x-40

+40 . +40

(28)/7=(7x)/7

4=x

Answer 2

4 =x

Explanation:

-3(x+4) = 4(x-10)

Distribute

-3x-12 = 4x - 40

Add 3x to each side

-3x -12 +3x = 4x +3x-40

-12 = 7x-40

Add 40 to each side

-12 +40 = 7x - 40+40

28 = 7x

Divide each side by 7

28/7 = 7x/7

4 =x