-140=7(3n+4)

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Solution for -140=7(3n+4) equation: 



-140=7(3n+4)

We move all terms to the left:

-140-(7(3n+4))=0



We calculate terms in parentheses: -(7(3n+4)), so:

7(3n+4)

We multiply parentheses

21n+28

Back to the equation:

-(21n+28)



We get rid of parentheses

-21n-28-140=0

We add all the numbers together, and all the variables

-21n-168=0

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

-21n=168

n=168/-21

n=-8

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