Given that:

To find:
Solution:
We'll have to make x the subject.
First, write the equation as it is.

We'll have to cancel -4, To cancel -4 we'll have to +4 to 20 because the opposite of Subtraction is addition.

Now, we'll have to cancel 3, To cancel 3 we'll have to divide 24 by 3, because the opposite of multiplication is division.

Workout

To check your answer is correct:

Therefore, the value of x is 8.