6a-9=-3a+15

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



6a-9=-3a+15

We move all terms to the left:

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

We get rid of parentheses

6a+3a-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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