18=3(2a+2)

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Solution for 18=3(2a+2) equation: 



18=3(2a+2)

We move all terms to the left:

18-(3(2a+2))=0



We calculate terms in parentheses: -(3(2a+2)), so:

3(2a+2)

We multiply parentheses

6a+6

Back to the equation:

-(6a+6)



We get rid of parentheses

-6a-6+18=0

We add all the numbers together, and all the variables

-6a+12=0

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

-6a=-12

a=-12/-6

a=+2

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