12-5a=a-7

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Solution for 12-5a=a-7 equation: 



12-5a=a-7

We move all terms to the left:

12-5a-(a-7)=0

We get rid of parentheses

-5a-a+7+12=0

We add all the numbers together, and all the variables

-6a+19=0

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

-6a=-19

a=-19/-6

a=3+1/6

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