140=4n+n

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Solution for 140=4n+n equation: 



140=4n+n

We move all terms to the left:

140-(4n+n)=0

We add all the numbers together, and all the variables

-(+5n)+140=0

We get rid of parentheses

-5n+140=0

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

-5n=-140

n=-140/-5

n=+28

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