-6n-4-8n=21

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Solution for -6n-4-8n=21 equation: 



-6n-4-8n=21

We move all terms to the left:

-6n-4-8n-(21)=0

We add all the numbers together, and all the variables

-14n-25=0

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

-14n=25

n=25/-14

n=-1+11/14

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