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(n-7)/4+(n+1)/5=7/10
We move all terms to the left:
(n-7)/4+(n+1)/5-(7/10)=0
We add all the numbers together, and all the variables
(n-7)/4+(n+1)/5-(+7/10)=0
We get rid of parentheses
(n-7)/4+(n+1)/5-7/10=0
We calculate fractions
There is no solution for this equation
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