7n+90=8n

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Solution for 7n+90=8n equation: 



7n+90=8n

We move all terms to the left:

7n+90-(8n)=0

We add all the numbers together, and all the variables

-1n+90=0

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

-n=-90

n=-90/-1

n=+90

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