5n+10n=90

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Solution for 5n+10n=90 equation: 



5n+10n=90

We move all terms to the left:

5n+10n-(90)=0

We add all the numbers together, and all the variables

15n-90=0

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

15n=90

n=90/15

n=6

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