-120=-10(7-x)

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Solution for -120=-10(7-x) equation: 



-120=-10(7-x)

We move all terms to the left:

-120-(-10(7-x))=0

We add all the numbers together, and all the variables

-(-10(-1x+7))-120=0



We calculate terms in parentheses: -(-10(-1x+7)), so:

-10(-1x+7)

We multiply parentheses

10x-70

Back to the equation:

-(10x-70)



We get rid of parentheses

-10x+70-120=0

We add all the numbers together, and all the variables

-10x-50=0

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

-10x=50

x=50/-10

x=-5

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