Solve for ξ
\xi =\frac{7}{22}\approx 0.318181818
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\frac{22}{7}\pi \xi =\pi
Swap sides so that all variable terms are on the left hand side.
\frac{22\pi }{7}\xi =\pi
The equation is in standard form.
\frac{7\times \frac{22\pi }{7}\xi }{22\pi }=\frac{7\pi }{22\pi }
Divide both sides by \frac{22}{7}\pi .
\xi =\frac{7\pi }{22\pi }
Dividing by \frac{22}{7}\pi undoes the multiplication by \frac{22}{7}\pi .
\xi =\frac{7}{22}
Divide \pi by \frac{22}{7}\pi .
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