-7n-15+4n=-30

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Solution for -7n-15+4n=-30 equation: 



-7n-15+4n=-30

We move all terms to the left:

-7n-15+4n-(-30)=0

We add all the numbers together, and all the variables

-3n+15=0

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

-3n=-15

n=-15/-3

n=+5

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