-8a+7=31

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Solution for -8a+7=31 equation: 



-8a+7=31

We move all terms to the left:

-8a+7-(31)=0

We add all the numbers together, and all the variables

-8a-24=0

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

-8a=24

a=24/-8

a=-3

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