3n+2-n=-18

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Solution for 3n+2-n=-18 equation: 



3n+2-n=-18

We move all terms to the left:

3n+2-n-(-18)=0

We add all the numbers together, and all the variables

2n+20=0

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

2n=-20

n=-20/2

n=-10

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