5n-7=20+2n

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Solution for 5n-7=20+2n equation: 



5n-7=20+2n

We move all terms to the left:

5n-7-(20+2n)=0

We add all the numbers together, and all the variables

5n-(2n+20)-7=0

We get rid of parentheses

5n-2n-20-7=0

We add all the numbers together, and all the variables

3n-27=0

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

3n=27

n=27/3

n=9

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