165=3(6a+7)

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Solution for 165=3(6a+7) equation: 



165=3(6a+7)

We move all terms to the left:

165-(3(6a+7))=0



We calculate terms in parentheses: -(3(6a+7)), so:

3(6a+7)

We multiply parentheses

18a+21

Back to the equation:

-(18a+21)



We get rid of parentheses

-18a-21+165=0

We add all the numbers together, and all the variables

-18a+144=0

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

-18a=-144

a=-144/-18

a=+8

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