-7-1a=-2a

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Solution for -7-1a=-2a equation: 



-7-1a=-2a

We move all terms to the left:

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

We get rid of parentheses

-1a+2a-7=0

We add all the numbers together, and all the variables

a-7=0

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

a=7

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