Solve for k (complex solution)
\left\{\begin{matrix}\\k=0\text{, }&\text{unconditionally}\\k\in \mathrm{C}\text{, }&x=\frac{5}{2}\end{matrix}\right.
Solve for x (complex solution)
\left\{\begin{matrix}\\x=\frac{5}{2}\text{, }&\text{unconditionally}\\x\in \mathrm{C}\text{, }&k=0\end{matrix}\right.
Solve for k
\left\{\begin{matrix}\\k=0\text{, }&\text{unconditionally}\\k\in \mathrm{R}\text{, }&x=\frac{5}{2}\end{matrix}\right.
Solve for x
\left\{\begin{matrix}\\x=\frac{5}{2}\text{, }&\text{unconditionally}\\x\in \mathrm{R}\text{, }&k=0\end{matrix}\right.
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2kx-5k=0
Subtract 5k from both sides.
\left(2x-5\right)k=0
Combine all terms containing k.
k=0
Divide 0 by -5+2x.
2kx=5k
The equation is in standard form.
\frac{2kx}{2k}=\frac{5k}{2k}
Divide both sides by 2k.
x=\frac{5k}{2k}
Dividing by 2k undoes the multiplication by 2k.
x=\frac{5}{2}
Divide 5k by 2k.
2kx-5k=0
Subtract 5k from both sides.
\left(2x-5\right)k=0
Combine all terms containing k.
k=0
Divide 0 by -5+2x.
2kx=5k
The equation is in standard form.
\frac{2kx}{2k}=\frac{5k}{2k}
Divide both sides by 2k.
x=\frac{5k}{2k}
Dividing by 2k undoes the multiplication by 2k.
x=\frac{5}{2}
Divide 5k by 2k.
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}