Solve for k
k=-\frac{\left(1-x\right)\left(x-6\right)}{3-x}
x\neq 3\text{ and }x\neq 1
Solve for x
\left\{\begin{matrix}\\x=\frac{\sqrt{k^{2}-2k+25}-k+7}{2}\text{, }&\text{unconditionally}\\x=\frac{-\sqrt{k^{2}-2k+25}-k+7}{2}\text{, }&k\neq 0\end{matrix}\right.
Graph
Share
Copied to clipboard
\left(x-1\right)x+\left(x-3\right)\left(x-1\right)\left(-2\right)=\left(x-3\right)k
Multiply both sides of the equation by \left(x-3\right)\left(x-1\right), the least common multiple of x-3,x-1.
x^{2}-x+\left(x-3\right)\left(x-1\right)\left(-2\right)=\left(x-3\right)k
Use the distributive property to multiply x-1 by x.
x^{2}-x+\left(x^{2}-4x+3\right)\left(-2\right)=\left(x-3\right)k
Use the distributive property to multiply x-3 by x-1 and combine like terms.
x^{2}-x-2x^{2}+8x-6=\left(x-3\right)k
Use the distributive property to multiply x^{2}-4x+3 by -2.
-x^{2}-x+8x-6=\left(x-3\right)k
Combine x^{2} and -2x^{2} to get -x^{2}.
-x^{2}+7x-6=\left(x-3\right)k
Combine -x and 8x to get 7x.
-x^{2}+7x-6=xk-3k
Use the distributive property to multiply x-3 by k.
xk-3k=-x^{2}+7x-6
Swap sides so that all variable terms are on the left hand side.
\left(x-3\right)k=-x^{2}+7x-6
Combine all terms containing k.
\frac{\left(x-3\right)k}{x-3}=\frac{\left(1-x\right)\left(x-6\right)}{x-3}
Divide both sides by x-3.
k=\frac{\left(1-x\right)\left(x-6\right)}{x-3}
Dividing by x-3 undoes the multiplication by x-3.
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}