5n+5n+3n-n=20

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Solution for 5n+5n+3n-n=20 equation: 



5n+5n+3n-n=20

We move all terms to the left:

5n+5n+3n-n-(20)=0

We add all the numbers together, and all the variables

12n-20=0

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

12n=20

n=20/12

n=1+2/3

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