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-4-2n=5.5
We move all terms to the left:
-4-2n-(5.5)=0
We add all the numbers together, and all the variables
-2n-9.5=0
We move all terms containing n to the left, all other terms to the right
-2n=9.5
n=9.5/-2
n=-4+1/1.3333333333333
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