2-2n=3+17

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Solution for 2-2n=3+17 equation: 



2-2n=3+17

We move all terms to the left:

2-2n-(3+17)=0

We add all the numbers together, and all the variables

-2n+2-20=0

We add all the numbers together, and all the variables

-2n-18=0

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

-2n=18

n=18/-2

n=-9

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