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-18.21-3.6n=7n+14.65
We move all terms to the left:
-18.21-3.6n-(7n+14.65)=0
We get rid of parentheses
-3.6n-7n-14.65-18.21=0
We add all the numbers together, and all the variables
-10.6n-32.86=0
We move all terms containing n to the left, all other terms to the right
-10.6n=32.86
n=32.86/-10.6
n=-3+1/10
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