39=3(j+7)

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Solution for 39=3(j+7) equation: 



39=3(j+7)

We move all terms to the left:

39-(3(j+7))=0



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

3(j+7)

We multiply parentheses

3j+21

Back to the equation:

-(3j+21)



We get rid of parentheses

-3j-21+39=0

We add all the numbers together, and all the variables

-3j+18=0

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

-3j=-18

j=-18/-3

j=+6

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