Solve for x
x=-\frac{2}{27}\approx -0.074074074
Graph
Share
Copied to clipboard
3\left(x-2\right)-9\times \frac{7}{6}x=3\left(3-2x\right)-3\left(x+4\right)-12x-4
Multiply both sides of the equation by 12, the least common multiple of 4,6,12,3.
3x-6-9\times \frac{7}{6}x=3\left(3-2x\right)-3\left(x+4\right)-12x-4
Use the distributive property to multiply 3 by x-2.
3x-6-\frac{9\times 7}{6}x=3\left(3-2x\right)-3\left(x+4\right)-12x-4
Express 9\times \frac{7}{6} as a single fraction.
3x-6-\frac{63}{6}x=3\left(3-2x\right)-3\left(x+4\right)-12x-4
Multiply 9 and 7 to get 63.
3x-6-\frac{21}{2}x=3\left(3-2x\right)-3\left(x+4\right)-12x-4
Reduce the fraction \frac{63}{6} to lowest terms by extracting and canceling out 3.
-\frac{15}{2}x-6=3\left(3-2x\right)-3\left(x+4\right)-12x-4
Combine 3x and -\frac{21}{2}x to get -\frac{15}{2}x.
-\frac{15}{2}x-6=9-6x-3\left(x+4\right)-12x-4
Use the distributive property to multiply 3 by 3-2x.
-\frac{15}{2}x-6=9-6x-3x-12-12x-4
Use the distributive property to multiply -3 by x+4.
-\frac{15}{2}x-6=9-9x-12-12x-4
Combine -6x and -3x to get -9x.
-\frac{15}{2}x-6=-3-9x-12x-4
Subtract 12 from 9 to get -3.
-\frac{15}{2}x-6=-3-21x-4
Combine -9x and -12x to get -21x.
-\frac{15}{2}x-6=-7-21x
Subtract 4 from -3 to get -7.
-\frac{15}{2}x-6+21x=-7
Add 21x to both sides.
\frac{27}{2}x-6=-7
Combine -\frac{15}{2}x and 21x to get \frac{27}{2}x.
\frac{27}{2}x=-7+6
Add 6 to both sides.
\frac{27}{2}x=-1
Add -7 and 6 to get -1.
x=-\frac{2}{27}
Multiply both sides by \frac{2}{27}, the reciprocal of \frac{27}{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}