120=2x-(15-7)

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Solution for 120=2x-(15-7) equation: 



120=2x-(15-7)

We move all terms to the left:

120-(2x-(15-7))=0

We add all the numbers together, and all the variables

-(2x-8)+120=0

We get rid of parentheses

-2x+8+120=0

We add all the numbers together, and all the variables

-2x+128=0

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

-2x=-128

x=-128/-2

x=+64

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