20n+50=90

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Solution for 20n+50=90 equation: 



20n+50=90

We move all terms to the left:

20n+50-(90)=0

We add all the numbers together, and all the variables

20n-40=0

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

20n=40

n=40/20

n=2

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