7n+12=5n+40

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Solution for 7n+12=5n+40 equation: 



7n+12=5n+40

We move all terms to the left:

7n+12-(5n+40)=0

We get rid of parentheses

7n-5n-40+12=0

We add all the numbers together, and all the variables

2n-28=0

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

2n=28

n=28/2

n=14

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