756=21(j+5)

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Solution for 756=21(j+5) equation: 



756=21(j+5)

We move all terms to the left:

756-(21(j+5))=0



We calculate terms in parentheses: -(21(j+5)), so:

21(j+5)

We multiply parentheses

21j+105

Back to the equation:

-(21j+105)



We get rid of parentheses

-21j-105+756=0

We add all the numbers together, and all the variables

-21j+651=0

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

-21j=-651

j=-651/-21

j=+31

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