15+3=7n

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Solution for 15+3=7n equation: 



15+3=7n

We move all terms to the left:

15+3-(7n)=0

We add all the numbers together, and all the variables

-7n+18=0

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

-7n=-18

n=-18/-7

n=2+4/7

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