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\frac{165}{180}=\frac{x-2}{x}
Divide both sides by 180.
\frac{11}{12}=\frac{x-2}{x}
Reduce the fraction \frac{165}{180} to lowest terms by extracting and canceling out 15.
11x=12\left(x-2\right)
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 12x, the least common multiple of 12,x.
11x=12x-24
Use the distributive property to multiply 12 by x-2.
11x-12x=-24
Subtract 12x from both sides.
-x=-24
Combine 11x and -12x to get -x.
x=24
Multiply both sides by -1.