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650+7.25n=18n
We move all terms to the left:
650+7.25n-(18n)=0
We add all the numbers together, and all the variables
-10.75n+650=0
We move all terms containing n to the left, all other terms to the right
-10.75n=-650
n=-650/-10.75
n=60+1/2.15
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