3n+5+2n=90

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



3n+5+2n=90

We move all terms to the left:

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

We add all the numbers together, and all the variables

5n-85=0

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

5n=85

n=85/5

n=17

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