112=4+-9a

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Solution for 112=4+-9a equation: 



112=4+-9a

We move all terms to the left:

112-(4+-9a)=0

We add all the numbers together, and all the variables

-(-9a)+112=0

We get rid of parentheses

9a+112=0

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

9a=-112

a=-112/9

a=-12+4/9

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