-2a+7;a=-1

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



-2a+7a=-1

We move all terms to the left:

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

We add all the numbers together, and all the variables

5a+1=0

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

5a=-1

a=-1/5

a=-1/5

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