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5(n+4)=2n+20
We move all terms to the left:
5(n+4)-(2n+20)=0
We multiply parentheses
5n-(2n+20)+20=0
We get rid of parentheses
5n-2n-20+20=0
We add all the numbers together, and all the variables
3n=0
n=0/3
n=0
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