-7n+2n=-15

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Solution for -7n+2n=-15 equation: 



-7n+2n=-15

We move all terms to the left:

-7n+2n-(-15)=0

We add all the numbers together, and all the variables

-5n+15=0

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

-5n=-15

n=-15/-5

n=+3

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