13+2n=3n+4n-12

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Solution for 13+2n=3n+4n-12 equation: 



13+2n=3n+4n-12

We move all terms to the left:

13+2n-(3n+4n-12)=0

We add all the numbers together, and all the variables

2n-(7n-12)+13=0

We get rid of parentheses

2n-7n+12+13=0

We add all the numbers together, and all the variables

-5n+25=0

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

-5n=-25

n=-25/-5

n=+5

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