Solve for x (complex solution)
\left\{\begin{matrix}\\x=-1\text{, }&\text{unconditionally}\\x\in \mathrm{C}\text{, }&y=2\end{matrix}\right.
Solve for y (complex solution)
\left\{\begin{matrix}\\y=2\text{, }&\text{unconditionally}\\y\in \mathrm{C}\text{, }&x=-1\end{matrix}\right.
Solve for x
\left\{\begin{matrix}\\x=-1\text{, }&\text{unconditionally}\\x\in \mathrm{R}\text{, }&y=2\end{matrix}\right.
Solve for y
\left\{\begin{matrix}\\y=2\text{, }&\text{unconditionally}\\y\in \mathrm{R}\text{, }&x=-1\end{matrix}\right.
Graph
Share
Copied to clipboard
xy-2-2x=-y
Subtract 2x from both sides.
xy-2x=-y+2
Add 2 to both sides.
\left(y-2\right)x=-y+2
Combine all terms containing x.
\left(y-2\right)x=2-y
The equation is in standard form.
\frac{\left(y-2\right)x}{y-2}=\frac{2-y}{y-2}
Divide both sides by -2+y.
x=\frac{2-y}{y-2}
Dividing by -2+y undoes the multiplication by -2+y.
x=-1
Divide -y+2 by -2+y.
xy-2+y=2x
Add y to both sides.
xy+y=2x+2
Add 2 to both sides.
\left(x+1\right)y=2x+2
Combine all terms containing y.
\frac{\left(x+1\right)y}{x+1}=\frac{2x+2}{x+1}
Divide both sides by 1+x.
y=\frac{2x+2}{x+1}
Dividing by 1+x undoes the multiplication by 1+x.
y=2
Divide 2+2x by 1+x.
xy-2-2x=-y
Subtract 2x from both sides.
xy-2x=-y+2
Add 2 to both sides.
\left(y-2\right)x=-y+2
Combine all terms containing x.
\left(y-2\right)x=2-y
The equation is in standard form.
\frac{\left(y-2\right)x}{y-2}=\frac{2-y}{y-2}
Divide both sides by -2+y.
x=\frac{2-y}{y-2}
Dividing by -2+y undoes the multiplication by -2+y.
x=-1
Divide -y+2 by -2+y.
xy-2+y=2x
Add y to both sides.
xy+y=2x+2
Add 2 to both sides.
\left(x+1\right)y=2x+2
Combine all terms containing y.
\frac{\left(x+1\right)y}{x+1}=\frac{2x+2}{x+1}
Divide both sides by 1+x.
y=\frac{2x+2}{x+1}
Dividing by 1+x undoes the multiplication by 1+x.
y=2
Divide 2+2x by 1+x.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}