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5/15=42/d
We move all terms to the left:
5/15-(42/d)=0
Domain of the equation: d)!=0We add all the numbers together, and all the variables
d!=0/1
d!=0
d∈R
-(+42/d)+5/15=0
We get rid of parentheses
-42/d+5/15=0
We calculate fractions
There is no solution for this equation
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