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2n+18-n=-30-n
We move all terms to the left:
2n+18-n-(-30-n)=0
We add all the numbers together, and all the variables
2n-n-(-1n-30)+18=0
We add all the numbers together, and all the variables
n-(-1n-30)+18=0
We get rid of parentheses
n+1n+30+18=0
We add all the numbers together, and all the variables
2n+48=0
We move all terms containing n to the left, all other terms to the right
2n=-48
n=-48/2
n=-24
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