12a-6=-78

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Solution for 12a-6=-78 equation: 



12a-6=-78

We move all terms to the left:

12a-6-(-78)=0

We add all the numbers together, and all the variables

12a+72=0

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

12a=-72

a=-72/12

a=-6

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