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7/2n=5
We move all terms to the left:
7/2n-(5)=0
Domain of the equation: 2n!=0We multiply all the terms by the denominator
n!=0/2
n!=0
n∈R
-5*2n+7=0
Wy multiply elements
-10n+7=0
We move all terms containing n to the left, all other terms to the right
-10n=-7
n=-7/-10
n=7/10
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