-30.5=9a-2a

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Solution for -30.5=9a-2a equation: 



-30.5=9a-2a

We move all terms to the left:

-30.5-(9a-2a)=0

We add all the numbers together, and all the variables

-(+7a)-30.5=0

We get rid of parentheses

-7a-30.5=0

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

-7a=30.5

a=30.5/-7

a=-4+2.5/7

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