-7+2a-a=-2

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



-7+2a-a=-2

We move all terms to the left:

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

We add all the numbers together, and all the variables

a-5=0

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

a=5

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