756=21(n+25)

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Solution for 756=21(n+25) equation: 



756=21(n+25)

We move all terms to the left:

756-(21(n+25))=0



We calculate terms in parentheses: -(21(n+25)), so:

21(n+25)

We multiply parentheses

21n+525

Back to the equation:

-(21n+525)



We get rid of parentheses

-21n-525+756=0

We add all the numbers together, and all the variables

-21n+231=0

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

-21n=-231

n=-231/-21

n=+11

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