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.50+n*5=4
We move all terms to the left:
.50+n*5-(4)=0
We add all the numbers together, and all the variables
n*5-3.5=0
Wy multiply elements
5n-3.5=0
We move all terms containing n to the left, all other terms to the right
5n=3.5
n=3.5/5
n=2.33333333333/3.33333333333
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