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0.2n+3=12.5
We move all terms to the left:
0.2n+3-(12.5)=0
We add all the numbers together, and all the variables
0.2n-9.5=0
We move all terms containing n to the left, all other terms to the right
0.2n=9.5
n=9.5/0.2
n=47+0.1/0.2
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