-8a-4a=12

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Solution for -8a-4a=12 equation: 



-8a-4a=12

We move all terms to the left:

-8a-4a-(12)=0

We add all the numbers together, and all the variables

-12a-12=0

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

-12a=12

a=12/-12

a=-1

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