12=a/9-7

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Solution for 12=a/9-7 equation: 



12=a/9-7

We move all terms to the left:

12-(a/9-7)=0

We get rid of parentheses

-a/9+7+12=0

We multiply all the terms by the denominator


-a+7*9+12*9=0

We add all the numbers together, and all the variables

-1a+171=0

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

-a=-171

a=-171/-1

a=+171

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