-7n+20n+7n+12n=-16

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Solution for -7n+20n+7n+12n=-16 equation: 



-7n+20n+7n+12n=-16

We move all terms to the left:

-7n+20n+7n+12n-(-16)=0

We add all the numbers together, and all the variables

32n+16=0

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

32n=-16

n=-16/32

n=-1/2

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