86=-6a-8(3a-7)

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Solution for 86=-6a-8(3a-7) equation: 



86=-6a-8(3a-7)

We move all terms to the left:

86-(-6a-8(3a-7))=0



We calculate terms in parentheses: -(-6a-8(3a-7)), so:

-6a-8(3a-7)

We multiply parentheses

-6a-24a+56

We add all the numbers together, and all the variables

-30a+56

Back to the equation:

-(-30a+56)



We get rid of parentheses

30a-56+86=0

We add all the numbers together, and all the variables

30a+30=0

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

30a=-30

a=-30/30

a=-1

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