Solve for x
x=-\frac{2y-z+7}{y+2}
|y|\neq 2
Solve for y
\left\{\begin{matrix}y=-\frac{2x-z+7}{x+2}\text{, }&x\neq \frac{z-11}{4}\text{ and }x\neq -2\text{ and }z\neq 3\\y\in \mathrm{R}\setminus 2,-2\text{, }&x=-2\text{ and }z=3\end{matrix}\right.
Share
Copied to clipboard
\left(y+2\right)\left(x+2\right)=z-3
Multiply both sides of the equation by \left(y-2\right)\left(y+2\right), the least common multiple of y-2,y^{2}-4.
yx+2y+2x+4=z-3
Use the distributive property to multiply y+2 by x+2.
yx+2x+4=z-3-2y
Subtract 2y from both sides.
yx+2x=z-3-2y-4
Subtract 4 from both sides.
yx+2x=z-7-2y
Subtract 4 from -3 to get -7.
\left(y+2\right)x=z-7-2y
Combine all terms containing x.
\left(y+2\right)x=-2y+z-7
The equation is in standard form.
\frac{\left(y+2\right)x}{y+2}=\frac{-2y+z-7}{y+2}
Divide both sides by y+2.
x=\frac{-2y+z-7}{y+2}
Dividing by y+2 undoes the multiplication by y+2.
\left(y+2\right)\left(x+2\right)=z-3
Variable y cannot be equal to any of the values -2,2 since division by zero is not defined. Multiply both sides of the equation by \left(y-2\right)\left(y+2\right), the least common multiple of y-2,y^{2}-4.
yx+2y+2x+4=z-3
Use the distributive property to multiply y+2 by x+2.
yx+2y+4=z-3-2x
Subtract 2x from both sides.
yx+2y=z-3-2x-4
Subtract 4 from both sides.
yx+2y=z-7-2x
Subtract 4 from -3 to get -7.
\left(x+2\right)y=z-7-2x
Combine all terms containing y.
\left(x+2\right)y=-2x+z-7
The equation is in standard form.
\frac{\left(x+2\right)y}{x+2}=\frac{-2x+z-7}{x+2}
Divide both sides by x+2.
y=\frac{-2x+z-7}{x+2}
Dividing by x+2 undoes the multiplication by x+2.
y=\frac{-2x+z-7}{x+2}\text{, }y\neq -2\text{ and }y\neq 2
Variable y cannot be equal to any of the values -2,2.
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}