-15+12a=3a+3

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Solution for -15+12a=3a+3 equation: 



-15+12a=3a+3

We move all terms to the left:

-15+12a-(3a+3)=0

We get rid of parentheses

12a-3a-3-15=0

We add all the numbers together, and all the variables

9a-18=0

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

9a=18

a=18/9

a=2

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