-4a+7-3+6a=-12

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Solution for -4a+7-3+6a=-12 equation: 



-4a+7-3+6a=-12

We move all terms to the left:

-4a+7-3+6a-(-12)=0

We add all the numbers together, and all the variables

2a+16=0

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

2a=-16

a=-16/2

a=-8

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