2(a-3)=9

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



2(a-3)=9

We move all terms to the left:

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

We multiply parentheses

2a-6-9=0

We add all the numbers together, and all the variables

2a-15=0

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

2a=15

a=15/2

a=7+1/2

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