20-3nn=5

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Solution for 20-3nn=5 equation: 



20-3nn=5

We move all terms to the left:

20-3nn-(5)=0

We add all the numbers together, and all the variables

-3nn+15=0

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

-3nn=-15

n=-15/1

n=-15

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