If c-12 = 7 (as my teacher says) then divid that by x sove for x then divide that by 13 then - 7

To solve this equation and find the value of x, let's begin by rewriting the equation:

c - 12 = 7

Next, we'll isolate the variable c by adding 12 to both sides of the equation:

c - 12 + 12 = 7 + 12

This simplifies to:

c = 19

Now that we have the value of c, let's move on to the second part of the problem. We are asked to divide c by x, and then divide the result by 13, and finally subtract 7.

Using the value of c we just found, we have:

(c/x) / 13 - 7

We can now substitute c = 19 into the expression:

(19/x) / 13 - 7

At this point, we have an expression involving a variable x. If you have specific values for x, you can substitute them to calculate the result. However, if you need an exact solution in terms of x, you can leave it as:

(19/x) / 13 - 7

Please note that without knowing the specific value of x, we cannot simplify this expression further.