Solve for x
x=-\frac{6}{23}\approx -0.260869565
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3\left(-9x-6\right)-6\left(-x+1\right)=2\left(x-9\right)
Multiply both sides of the equation by 12, the least common multiple of 4,2,6.
-27x-18-6\left(-x+1\right)=2\left(x-9\right)
Use the distributive property to multiply 3 by -9x-6.
-27x-18-6\left(-x\right)-6=2\left(x-9\right)
Use the distributive property to multiply -6 by -x+1.
-27x-18+6x-6=2\left(x-9\right)
Multiply -6 and -1 to get 6.
-21x-18-6=2\left(x-9\right)
Combine -27x and 6x to get -21x.
-21x-24=2\left(x-9\right)
Subtract 6 from -18 to get -24.
-21x-24=2x-18
Use the distributive property to multiply 2 by x-9.
-21x-24-2x=-18
Subtract 2x from both sides.
-23x-24=-18
Combine -21x and -2x to get -23x.
-23x=-18+24
Add 24 to both sides.
-23x=6
Add -18 and 24 to get 6.
x=\frac{6}{-23}
Divide both sides by -23.
x=-\frac{6}{23}
Fraction \frac{6}{-23} can be rewritten as -\frac{6}{23} by extracting the negative sign.
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}