-2a-6=-7-a

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Solution for -2a-6=-7-a equation: 



-2a-6=-7-a

We move all terms to the left:

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

We add all the numbers together, and all the variables

-2a-(-1a-7)-6=0

We get rid of parentheses

-2a+1a+7-6=0

We add all the numbers together, and all the variables

-1a+1=0

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

-a=-1

a=-1/-1

a=1

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