3(3a+2)+6=81

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Solution for 3(3a+2)+6=81 equation: 



3(3a+2)+6=81

We move all terms to the left:

3(3a+2)+6-(81)=0

We add all the numbers together, and all the variables

3(3a+2)-75=0

We multiply parentheses

9a+6-75=0

We add all the numbers together, and all the variables

9a-69=0

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

9a=69

a=69/9

a=7+2/3

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