3(-X-4)=2X +3(X-5)

Question

3(-X-4)=2X +3(X-5)

Answer 1

Your goal is to get x isolated on one side. To do that, we need to take a few steps to collapse the terms:

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

Get rid of the parenthesis by distributing the numbers outside each parenthesis

-3x-12=2x+3x-15

Add -5x to both sides

-8x-12=-15

Add 12 to both sides

-8x=-3

Divide by -8

x =3/8

 

Check your answer by plugging in 3/8 for x in the original equation. You'll see that each side will produce the same number, which let's you know you got the right answer!

Hope this helps, please vote! :)

Answer 2

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

-3x-12 = 2x =3x -15      expand by multiplying out the expression in ()

-3x-12 = 5x-15

-3x+3x-12 = 5x+3x-15  add 3x to both sides

-12+15 = 8x-15+15      add 15 to both sides

3 = 8x

3/8 = 8x/8  divide both sides by 8

3/8 = x