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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-1a+6a-(9a+9)+3=0

We get rid of parentheses

-1a+6a-9a-9+3=0

We add all the numbers together, and all the variables

-4a-6=0

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

-4a=6

a=6/-4

a=-1+1/2

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