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21/56=15/x
We move all terms to the left:
21/56-(15/x)=0
Domain of the equation: x)!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
-(+15/x)+21/56=0
We get rid of parentheses
-15/x+21/56=0
We calculate fractions
There is no solution for this equation
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