-5n+4=-21

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Solution for -5n+4=-21 equation: 



-5n+4=-21

We move all terms to the left:

-5n+4-(-21)=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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