25=4+4n+3n

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Solution for 25=4+4n+3n equation: 



25=4+4n+3n

We move all terms to the left:

25-(4+4n+3n)=0

We add all the numbers together, and all the variables

-(7n+4)+25=0

We get rid of parentheses

-7n-4+25=0

We add all the numbers together, and all the variables

-7n+21=0

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

-7n=-21

n=-21/-7

n=+3

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