n+n+1+n+2+n+3n+4+n+5=90

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Solution for n+n+1+n+2+n+3n+4+n+5=90 equation: 



n+n+1+n+2+n+3n+4+n+5=90

We move all terms to the left:

n+n+1+n+2+n+3n+4+n+5-(90)=0

We add all the numbers together, and all the variables

8n-78=0

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

8n=78

n=78/8

n=9+3/4

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