7n-4=4n+20

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Solution for 7n-4=4n+20 equation: 



7n-4=4n+20

We move all terms to the left:

7n-4-(4n+20)=0

We get rid of parentheses

7n-4n-20-4=0

We add all the numbers together, and all the variables

3n-24=0

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

3n=24

n=24/3

n=8

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