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744.80=0.82n+220
We move all terms to the left:
744.80-(0.82n+220)=0
We add all the numbers together, and all the variables
-(0.82n+220)+744.8=0
We get rid of parentheses
-0.82n-220+744.8=0
We add all the numbers together, and all the variables
-0.82n+524.8=0
We move all terms containing n to the left, all other terms to the right
-0.82n=-524.8
n=-524.8/-0.82
n=+640
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