-3n+7n=-18

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Solution for -3n+7n=-18 equation: 



-3n+7n=-18

We move all terms to the left:

-3n+7n-(-18)=0

We add all the numbers together, and all the variables

4n+18=0

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

4n=-18

n=-18/4

n=-4+1/2

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