Solve for x
x=-18
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4x+\frac{1}{9}\times 6x-2=5x+4
Calculate 3 to the power of -2 and get \frac{1}{9}.
4x+\frac{2}{3}x-2=5x+4
Multiply \frac{1}{9} and 6 to get \frac{2}{3}.
\frac{14}{3}x-2=5x+4
Combine 4x and \frac{2}{3}x to get \frac{14}{3}x.
\frac{14}{3}x-2-5x=4
Subtract 5x from both sides.
-\frac{1}{3}x-2=4
Combine \frac{14}{3}x and -5x to get -\frac{1}{3}x.
-\frac{1}{3}x=4+2
Add 2 to both sides.
-\frac{1}{3}x=6
Add 4 and 2 to get 6.
x=6\left(-3\right)
Multiply both sides by -3, the reciprocal of -\frac{1}{3}.
x=-18
Multiply 6 and -3 to get -18.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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}