240:(x:15)-18=42

Let's solve the equation step by step.

240 : (x/15) - 18 = 42

First, note that ":" often signifies division. So, we'll rewrite the equation using the division symbol "/":

240 / (x/15) - 18 = 42

Next, we want to isolate the term with the variable x on one side of the equation. To do that, we'll start by moving the -18 to the other side of the equation by adding 18 to both sides:

240 / (x/15) = 42 + 18 240 / (x/15) = 60

Next, we want to get rid of the fraction in the denominator. We can do that by multiplying both sides of the equation by x/15:

(240 / (x/15)) * (x/15) = 60 * (x/15)

This will cause the (x/15) terms to cancel out on the left side:

240 = 60 * (x/15)

Now, let's multiply 60 by x/15:

240 = 60x / 15

To solve for x, multiply both sides by 15:

240 * 15 = 60x 3600 = 60x

Then, divide both sides by 60 to isolate x:

3600 / 60 = x x = 60

So, the solution to the original equation is x = 60.