-6(a-7)=84

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Solution for -6(a-7)=84 equation: 



-6(a-7)=84

We move all terms to the left:

-6(a-7)-(84)=0

We multiply parentheses

-6a+42-84=0

We add all the numbers together, and all the variables

-6a-42=0

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

-6a=42

a=42/-6

a=-7

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