Solve for x
x=80
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2\times 9\times \frac{x}{360}=4
Cancel out \pi on both sides.
2\times 9x=1440
Multiply both sides of the equation by 360.
18x=1440
Multiply 2 and 9 to get 18.
x=\frac{1440}{18}
Divide both sides by 18.
x=80
Divide 1440 by 18 to get 80.
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