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2/7n+1/10=1/2(n+4)
We move all terms to the left:
2/7n+1/10-(1/2(n+4))=0
Domain of the equation: 7n!=0
n!=0/7
n!=0
n∈R
Domain of the equation: 2(n+4))!=0We calculate fractions
n∈R
(40nn/(140n^2n+(-(1*7n*10)/(140n^2n+28n^2/(140n^2n=0
We can not solve this equation
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