-3n-5n=18

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Solution for -3n-5n=18 equation: 



-3n-5n=18

We move all terms to the left:

-3n-5n-(18)=0

We add all the numbers together, and all the variables

-8n-18=0

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

-8n=18

n=18/-8

n=-2+1/4

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