39=7+2(5a+6)

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Solution for 39=7+2(5a+6) equation: 



39=7+2(5a+6)

We move all terms to the left:

39-(7+2(5a+6))=0



We calculate terms in parentheses: -(7+2(5a+6)), so:

7+2(5a+6)

determiningTheFunctionDomain
2(5a+6)+7

We multiply parentheses

10a+12+7

We add all the numbers together, and all the variables

10a+19

Back to the equation:

-(10a+19)



We get rid of parentheses

-10a-19+39=0

We add all the numbers together, and all the variables

-10a+20=0

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

-10a=-20

a=-20/-10

a=+2

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