To solve the equation (x-36)x15=450, we can start by simplifying the left side of the equation.

First, distribute the 15 to both terms inside the parentheses:

15(x-36) = 450

Next, simplify the expression inside the parentheses:

15x - 540 = 450

Now, let's isolate the variable x by moving the constant term to the other side of the equation:

15x = 450 + 540

15x = 990

Finally, divide both sides of the equation by 15 to solve for x:

x = 990/15

x = 66

Therefore, the solution to the equation (x-36)x15=450 is x = 66.