-15-7x=-4x-8x

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Solution for -15-7x=-4x-8x equation: 



-15-7x=-4x-8x

We move all terms to the left:

-15-7x-(-4x-8x)=0

We add all the numbers together, and all the variables

-7x-(-12x)-15=0

We get rid of parentheses

-7x+12x-15=0

We add all the numbers together, and all the variables

5x-15=0

We move all terms containing x to the left, all other terms to the right

5x=15

x=15/5

x=3

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