2(86-10x)=81-7x

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Solution for 2(86-10x)=81-7x equation: 



2(86-10x)=81-7x

We move all terms to the left:

2(86-10x)-(81-7x)=0

We add all the numbers together, and all the variables

2(-10x+86)-(-7x+81)=0

We multiply parentheses

-20x-(-7x+81)+172=0

We get rid of parentheses

-20x+7x-81+172=0

We add all the numbers together, and all the variables

-13x+91=0

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

-13x=-91

x=-91/-13

x=+7

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