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2n+3.8=6.4
We move all terms to the left:
2n+3.8-(6.4)=0
We add all the numbers together, and all the variables
2n-2.6=0
We move all terms containing n to the left, all other terms to the right
2n=2.6
n=2.6/2
n=1+0.6/2
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