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2/9d-1/7=1/5
We move all terms to the left:
2/9d-1/7-(1/5)=0
Domain of the equation: 9d!=0We add all the numbers together, and all the variables
d!=0/9
d!=0
d∈R
2/9d-1/7-(+1/5)=0
We get rid of parentheses
2/9d-1/7-1/5=0
We calculate fractions
There is no solution for this equation
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