75=3(n+7)

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Solution for 75=3(n+7) equation: 



75=3(n+7)

We move all terms to the left:

75-(3(n+7))=0



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

3(n+7)

We multiply parentheses

3n+21

Back to the equation:

-(3n+21)



We get rid of parentheses

-3n-21+75=0

We add all the numbers together, and all the variables

-3n+54=0

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

-3n=-54

n=-54/-3

n=+18

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