660x:17x=3 ,

To solve the equation, we need to get rid of the denominators. Multiply both sides of the equation by the common denominator of 17x, which is 17x:

660x * (17x) / (17x) = 3 * (17x) / (17x)

This simplifies to:

660 * 17 = 3 * 17x

11220 = 51x

To isolate x, divide both sides of the equation by 51:

11220 / 51 = x

x ≈ 220.59