Solve for x
x=\frac{343}{169\pi }\approx 0.646037225
Graph
Share
Copied to clipboard
343=\pi \times 13^{2}x
Calculate 7 to the power of 3 and get 343.
343=\pi \times 169x
Calculate 13 to the power of 2 and get 169.
\pi \times 169x=343
Swap sides so that all variable terms are on the left hand side.
169\pi x=343
The equation is in standard form.
\frac{169\pi x}{169\pi }=\frac{343}{169\pi }
Divide both sides by 169\pi .
x=\frac{343}{169\pi }
Dividing by 169\pi undoes the multiplication by 169\pi .
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}