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1.2n+0.688=5
We move all terms to the left:
1.2n+0.688-(5)=0
We add all the numbers together, and all the variables
1.2n-4.312=0
We move all terms containing n to the left, all other terms to the right
1.2n=4.312
n=4.312/1.2
n=3+0.712/1.2
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