(9a-15)=6

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Solution for (9a-15)=6 equation: 



(9a-15)=6

We move all terms to the left:

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

We get rid of parentheses

9a-15-6=0

We add all the numbers together, and all the variables

9a-21=0

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

9a=21

a=21/9

a=2+1/3

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