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Solve for x_2
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9x_{2}-\pi =6\pi -\pi +18.75
Multiply both sides of the equation by 3.
9x_{2}=6\pi -\pi +18.75+\pi
Add \pi to both sides.
9x_{2}=7\pi -\pi +18.75
Combine 6\pi and \pi to get 7\pi .
9x_{2}=6\pi +18.75
Combine 7\pi and -\pi to get 6\pi .
\frac{9x_{2}}{9}=\frac{6\pi +18.75}{9}
Divide both sides by 9.
x_{2}=\frac{6\pi +18.75}{9}
Dividing by 9 undoes the multiplication by 9.
x_{2}=\frac{2\pi }{3}+\frac{25}{12}
Divide 6\pi +18.75 by 9.