2a+3(a-3)=9

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Solution for 2a+3(a-3)=9 equation: 



2a+3(a-3)=9

We move all terms to the left:

2a+3(a-3)-(9)=0

We multiply parentheses

2a+3a-9-9=0

We add all the numbers together, and all the variables

5a-18=0

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

5a=18

a=18/5

a=3+3/5

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