3n=40+2n+15

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Solution for 3n=40+2n+15 equation: 



3n=40+2n+15

We move all terms to the left:

3n-(40+2n+15)=0

We add all the numbers together, and all the variables

3n-(2n+55)=0

We get rid of parentheses

3n-2n-55=0

We add all the numbers together, and all the variables

n-55=0

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

n=55

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