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