\frac{ 2 \pi }{ 9 } = \frac{ x2 }{ }
Solve for x_2
x_{2}=\frac{2\pi }{9}\approx 0.698131701
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2\pi =9x_{2}
Multiply both sides of the equation by 9.
9x_{2}=2\pi
Swap sides so that all variable terms are on the left hand side.
\frac{9x_{2}}{9}=\frac{2\pi }{9}
Divide both sides by 9.
x_{2}=\frac{2\pi }{9}
Dividing by 9 undoes the multiplication by 9.
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