Solve for x
x=5
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-5x+2\times \frac{11}{3}+2\left(-\frac{4}{3}\right)x=-31
Use the distributive property to multiply 2 by \frac{11}{3}-\frac{4}{3}x.
-5x+\frac{2\times 11}{3}+2\left(-\frac{4}{3}\right)x=-31
Express 2\times \frac{11}{3} as a single fraction.
-5x+\frac{22}{3}+2\left(-\frac{4}{3}\right)x=-31
Multiply 2 and 11 to get 22.
-5x+\frac{22}{3}+\frac{2\left(-4\right)}{3}x=-31
Express 2\left(-\frac{4}{3}\right) as a single fraction.
-5x+\frac{22}{3}+\frac{-8}{3}x=-31
Multiply 2 and -4 to get -8.
-5x+\frac{22}{3}-\frac{8}{3}x=-31
Fraction \frac{-8}{3} can be rewritten as -\frac{8}{3} by extracting the negative sign.
-\frac{23}{3}x+\frac{22}{3}=-31
Combine -5x and -\frac{8}{3}x to get -\frac{23}{3}x.
-\frac{23}{3}x=-31-\frac{22}{3}
Subtract \frac{22}{3} from both sides.
-\frac{23}{3}x=-\frac{93}{3}-\frac{22}{3}
Convert -31 to fraction -\frac{93}{3}.
-\frac{23}{3}x=\frac{-93-22}{3}
Since -\frac{93}{3} and \frac{22}{3} have the same denominator, subtract them by subtracting their numerators.
-\frac{23}{3}x=-\frac{115}{3}
Subtract 22 from -93 to get -115.
x=-\frac{115}{3}\left(-\frac{3}{23}\right)
Multiply both sides by -\frac{3}{23}, the reciprocal of -\frac{23}{3}.
x=\frac{-115\left(-3\right)}{3\times 23}
Multiply -\frac{115}{3} times -\frac{3}{23} by multiplying numerator times numerator and denominator times denominator.
x=\frac{345}{69}
Do the multiplications in the fraction \frac{-115\left(-3\right)}{3\times 23}.
x=5
Divide 345 by 69 to get 5.
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}