-15+21+5n=-19

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Solution for -15+21+5n=-19 equation: 



-15+21+5n=-19

We move all terms to the left:

-15+21+5n-(-19)=0

We add all the numbers together, and all the variables

5n+25=0

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

5n=-25

n=-25/5

n=-5

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