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y+x=2xy
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by xy, the least common multiple of x,y.
y+x-2xy=0
Subtract 2xy from both sides.
x-2xy=-y
Subtract y from both sides. Anything subtracted from zero gives its negation.
\left(1-2y\right)x=-y
Combine all terms containing x.
\frac{\left(1-2y\right)x}{1-2y}=-\frac{y}{1-2y}
Divide both sides by 1-2y.
x=-\frac{y}{1-2y}
Dividing by 1-2y undoes the multiplication by 1-2y.
x=-\frac{y}{1-2y}\text{, }x\neq 0
Variable x cannot be equal to 0.
y+x=2xy
Variable y cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by xy, the least common multiple of x,y.
y+x-2xy=0
Subtract 2xy from both sides.
y-2xy=-x
Subtract x from both sides. Anything subtracted from zero gives its negation.
\left(1-2x\right)y=-x
Combine all terms containing y.
\frac{\left(1-2x\right)y}{1-2x}=-\frac{x}{1-2x}
Divide both sides by 1-2x.
y=-\frac{x}{1-2x}
Dividing by 1-2x undoes the multiplication by 1-2x.
y=-\frac{x}{1-2x}\text{, }y\neq 0
Variable y cannot be equal to 0.