5n+13n=72

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Solution for 5n+13n=72 equation: 



5n+13n=72

We move all terms to the left:

5n+13n-(72)=0

We add all the numbers together, and all the variables

18n-72=0

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

18n=72

n=72/18

n=4

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