2(2a+3)=9

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



2(2a+3)=9

We move all terms to the left:

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

We multiply parentheses

4a+6-9=0

We add all the numbers together, and all the variables

4a-3=0

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

4a=3

a=3/4

a=3/4

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