-8a-1=7(7+6a)

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Solution for -8a-1=7(7+6a) equation: 



-8a-1=7(7+6a)

We move all terms to the left:

-8a-1-(7(7+6a))=0

We add all the numbers together, and all the variables

-8a-(7(6a+7))-1=0



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

7(6a+7)

We multiply parentheses

42a+49

Back to the equation:

-(42a+49)



We get rid of parentheses

-8a-42a-49-1=0

We add all the numbers together, and all the variables

-50a-50=0

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

-50a=50

a=50/-50

a=-1

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