Solve for x
x = -\frac{3}{2} = -1\frac{1}{2} = -1.5
Graph
Quiz
Linear Equation
5 problems similar to:
\frac { x + 1 } { x ^ { 2 } + 5 x + 6 } = \frac { 1 } { x }
Share
Copied to clipboard
x\left(x+1\right)=\left(x+2\right)\left(x+3\right)
Variable x cannot be equal to any of the values -3,-2,0 since division by zero is not defined. Multiply both sides of the equation by x\left(x+2\right)\left(x+3\right), the least common multiple of x^{2}+5x+6,x.
x^{2}+x=\left(x+2\right)\left(x+3\right)
Use the distributive property to multiply x by x+1.
x^{2}+x=x^{2}+5x+6
Use the distributive property to multiply x+2 by x+3 and combine like terms.
x^{2}+x-x^{2}=5x+6
Subtract x^{2} from both sides.
x=5x+6
Combine x^{2} and -x^{2} to get 0.
x-5x=6
Subtract 5x from both sides.
-4x=6
Combine x and -5x to get -4x.
x=\frac{6}{-4}
Divide both sides by -4.
x=-\frac{3}{2}
Reduce the fraction \frac{6}{-4} to lowest terms by extracting and canceling out 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}