Answer:
x = 39
Step-by-step explanation:
To solve for x, we have to get it by itself in the equation.
In this problem, we have to do the opposite of subtraction and add 36 to the left and right side of the equation.
3 + 36 = x - 36 + 36
36 + 3 is equal to 39 and -36 + 36 cancels out.
This leaves us with 39 = x.
