-90=22+a

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Solution for -90=22+a equation: 



-90=22+a

We move all terms to the left:

-90-(22+a)=0

We add all the numbers together, and all the variables

-(a+22)-90=0

We get rid of parentheses

-a-22-90=0

We add all the numbers together, and all the variables

-1a-112=0

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

-a=112

a=112/-1

a=-112

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