-392=-8(7+7a)

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Solution for -392=-8(7+7a) equation: 



-392=-8(7+7a)

We move all terms to the left:

-392-(-8(7+7a))=0

We add all the numbers together, and all the variables

-(-8(7a+7))-392=0



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

-8(7a+7)

We multiply parentheses

-56a-56

Back to the equation:

-(-56a-56)



We get rid of parentheses

56a+56-392=0

We add all the numbers together, and all the variables

56a-336=0

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

56a=336

a=336/56

a=6

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