3n-20=15-2n

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Solution for 3n-20=15-2n equation: 



3n-20=15-2n

We move all terms to the left:

3n-20-(15-2n)=0

We add all the numbers together, and all the variables

3n-(-2n+15)-20=0

We get rid of parentheses

3n+2n-15-20=0

We add all the numbers together, and all the variables

5n-35=0

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

5n=35

n=35/5

n=7

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