-7-4n=21

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Solution for -7-4n=21 equation:



-7-4n=21
We move all terms to the left:
-7-4n-(21)=0
We add all the numbers together, and all the variables
-4n-28=0
We move all terms containing n to the left, all other terms to the right
-4n=28
n=28/-4
n=-7

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