9a-12=-7

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Solution for 9a-12=-7 equation: 



9a-12=-7

We move all terms to the left:

9a-12-(-7)=0

We add all the numbers together, and all the variables

9a-5=0

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

9a=5

a=5/9

a=5/9

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