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.7n-4=0.9
We move all terms to the left:
.7n-4-(0.9)=0
We add all the numbers together, and all the variables
.7n-4.9=0
We move all terms containing n to the left, all other terms to the right
.7n=4.9
n=4.9/.7
n=7+8.881784197E-16/.7
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