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(d/d+4)+(d/d+9)=1
We move all terms to the left:
(d/d+4)+(d/d+9)-(1)=0
Domain of the equation: d+4)!=0
d∈R
Domain of the equation: d+9)!=0We get rid of parentheses
d∈R
d/d+d/d+4+9-1=0
Fractions to decimals
4+9-1+1+1=0
We add all the numbers together, and all the variables
14!=0
There is no solution for this equation
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