-86=-2(-x+7)+7x

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Solution for -86=-2(-x+7)+7x equation: 



-86=-2(-x+7)+7x

We move all terms to the left:

-86-(-2(-x+7)+7x)=0

We add all the numbers together, and all the variables

-(-2(-1x+7)+7x)-86=0



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

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

We add all the numbers together, and all the variables

7x-2(-1x+7)

We multiply parentheses

7x+2x-14

We add all the numbers together, and all the variables

9x-14

Back to the equation:

-(9x-14)



We get rid of parentheses

-9x+14-86=0

We add all the numbers together, and all the variables

-9x-72=0

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

-9x=72

x=72/-9

x=-8

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