-7-7a=-6(7+2a)

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Solution for -7-7a=-6(7+2a) equation: 



-7-7a=-6(7+2a)

We move all terms to the left:

-7-7a-(-6(7+2a))=0

We add all the numbers together, and all the variables

-7a-(-6(2a+7))-7=0



We calculate terms in parentheses: -(-6(2a+7)), so:

-6(2a+7)

We multiply parentheses

-12a-42

Back to the equation:

-(-12a-42)



We get rid of parentheses

-7a+12a+42-7=0

We add all the numbers together, and all the variables

5a+35=0

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

5a=-35

a=-35/5

a=-7

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