Solve for x
x=\frac{9}{13}\approx 0.692307692
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Linear Equation
5 problems similar to:
\frac { x - 3 } { x + 2 } + \frac { 3 x + 1 } { 3 x - 1 } = 2
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\left(3x-1\right)\left(x-3\right)+\left(x+2\right)\left(3x+1\right)=2\left(3x-1\right)\left(x+2\right)
Variable x cannot be equal to any of the values -2,\frac{1}{3} since division by zero is not defined. Multiply both sides of the equation by \left(3x-1\right)\left(x+2\right), the least common multiple of x+2,3x-1.
3x^{2}-10x+3+\left(x+2\right)\left(3x+1\right)=2\left(3x-1\right)\left(x+2\right)
Use the distributive property to multiply 3x-1 by x-3 and combine like terms.
3x^{2}-10x+3+3x^{2}+7x+2=2\left(3x-1\right)\left(x+2\right)
Use the distributive property to multiply x+2 by 3x+1 and combine like terms.
6x^{2}-10x+3+7x+2=2\left(3x-1\right)\left(x+2\right)
Combine 3x^{2} and 3x^{2} to get 6x^{2}.
6x^{2}-3x+3+2=2\left(3x-1\right)\left(x+2\right)
Combine -10x and 7x to get -3x.
6x^{2}-3x+5=2\left(3x-1\right)\left(x+2\right)
Add 3 and 2 to get 5.
6x^{2}-3x+5=\left(6x-2\right)\left(x+2\right)
Use the distributive property to multiply 2 by 3x-1.
6x^{2}-3x+5=6x^{2}+10x-4
Use the distributive property to multiply 6x-2 by x+2 and combine like terms.
6x^{2}-3x+5-6x^{2}=10x-4
Subtract 6x^{2} from both sides.
-3x+5=10x-4
Combine 6x^{2} and -6x^{2} to get 0.
-3x+5-10x=-4
Subtract 10x from both sides.
-13x+5=-4
Combine -3x and -10x to get -13x.
-13x=-4-5
Subtract 5 from both sides.
-13x=-9
Subtract 5 from -4 to get -9.
x=\frac{-9}{-13}
Divide both sides by -13.
x=\frac{9}{13}
Fraction \frac{-9}{-13} can be simplified to \frac{9}{13} by removing the negative sign from both the numerator and the denominator.
Examples
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{ 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}