-2(a+1)+3a=9

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Solution for -2(a+1)+3a=9 equation: 



-2(a+1)+3a=9

We move all terms to the left:

-2(a+1)+3a-(9)=0

We add all the numbers together, and all the variables

3a-2(a+1)-9=0

We multiply parentheses

3a-2a-2-9=0

We add all the numbers together, and all the variables

a-11=0

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

a=11

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