240:(x:15)-18=42

To solve the equation, let's first simplify it step by step:

240:(x:15)-18=42

First, let's rewrite the equation using division signs:

240 / (x / 15) - 18 = 42

Now let's isolate the term with x by adding 18 to both sides:

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

Next, we need to get rid of the denominator. To do this, we'll multiply both sides by (x / 15):

240 = 60 * (x / 15)

Now, to simplify the right side, we need to multiply 60 by (x / 15):

240 = 60x / 15

To get rid of the denominator (15), we multiply both sides by 15:

240 * 15 = 60x

Now, simplify the left side by multiplying:

3600 = 60x

Finally, to solve for x, divide both sides by 60:

3600 / 60 = x

x = 60

So, the value of x that satisfies the original equation is 60.