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9/2u-2/7=-4/5
We move all terms to the left:
9/2u-2/7-(-4/5)=0
Domain of the equation: 2u!=0We get rid of parentheses
u!=0/2
u!=0
u∈R
9/2u-2/7+4/5=0
We calculate fractions
There is no solution for this equation
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