1+7n=5n+7

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Solution for 1+7n=5n+7 equation: 



1+7n=5n+7

We move all terms to the left:

1+7n-(5n+7)=0

We get rid of parentheses

7n-5n-7+1=0

We add all the numbers together, and all the variables

2n-6=0

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

2n=6

n=6/2

n=3

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