Solve for x
x = -\frac{23}{5} = -4\frac{3}{5} = -4.6
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Linear Equation
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\frac { ( 3 x + 9 ) } { 2 } - \frac { ( 2 x - 4 ) } { 3 } = 2
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3\left(3x+9\right)-2\left(2x-4\right)=12
Multiply both sides of the equation by 6, the least common multiple of 2,3.
9x+27-2\left(2x-4\right)=12
Use the distributive property to multiply 3 by 3x+9.
9x+27-4x+8=12
Use the distributive property to multiply -2 by 2x-4.
5x+27+8=12
Combine 9x and -4x to get 5x.
5x+35=12
Add 27 and 8 to get 35.
5x=12-35
Subtract 35 from both sides.
5x=-23
Subtract 35 from 12 to get -23.
x=\frac{-23}{5}
Divide both sides by 5.
x=-\frac{23}{5}
Fraction \frac{-23}{5} can be rewritten as -\frac{23}{5} by extracting the negative sign.
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}