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3n-15-5=-4n+8+5n
We move all terms to the left:
3n-15-5-(-4n+8+5n)=0
We add all the numbers together, and all the variables
3n-(n+8)-15-5=0
We add all the numbers together, and all the variables
3n-(n+8)-20=0
We get rid of parentheses
3n-n-8-20=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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