-84=6(-2a-6)

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Solution for -84=6(-2a-6) equation: 



-84=6(-2a-6)

We move all terms to the left:

-84-(6(-2a-6))=0



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

6(-2a-6)

We multiply parentheses

-12a-36

Back to the equation:

-(-12a-36)



We get rid of parentheses

12a+36-84=0

We add all the numbers together, and all the variables

12a-48=0

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

12a=48

a=48/12

a=4

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