-3a-9=6a+15

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Solution for -3a-9=6a+15 equation: 



-3a-9=6a+15

We move all terms to the left:

-3a-9-(6a+15)=0

We get rid of parentheses

-3a-6a-15-9=0

We add all the numbers together, and all the variables

-9a-24=0

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

-9a=24

a=24/-9

a=-2+2/3

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