-87=-2x+7(-x-6)

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Solution for -87=-2x+7(-x-6) equation: 



-87=-2x+7(-x-6)

We move all terms to the left:

-87-(-2x+7(-x-6))=0

We add all the numbers together, and all the variables

-(-2x+7(-1x-6))-87=0



We calculate terms in parentheses: -(-2x+7(-1x-6)), so:

-2x+7(-1x-6)

We multiply parentheses

-2x-7x-42

We add all the numbers together, and all the variables

-9x-42

Back to the equation:

-(-9x-42)



We get rid of parentheses

9x+42-87=0

We add all the numbers together, and all the variables

9x-45=0

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

9x=45

x=45/9

x=5

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