-3a+12=-2a=18

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Solution for -3a+12=-2a=18 equation: 



-3a+12=-2a=18

We move all terms to the left:

-3a+12-(-2a)=0

We get rid of parentheses

-3a+2a+12=0

We add all the numbers together, and all the variables

-1a+12=0

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

-a=-12

a=-12/-1

a=+12

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