12-7a=61

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Solution for 12-7a=61 equation: 



12-7a=61

We move all terms to the left:

12-7a-(61)=0

We add all the numbers together, and all the variables

-7a-49=0

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

-7a=49

a=49/-7

a=-7

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