-4n+21=-43

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Solution for -4n+21=-43 equation: 



-4n+21=-43

We move all terms to the left:

-4n+21-(-43)=0

We add all the numbers together, and all the variables

-4n+64=0

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

-4n=-64

n=-64/-4

n=+16

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