<span>6 * ? = 20 is the same thing as</span> 6x = 20. When solving an equation for x, if it is multiplied by something, you divide whatever it is multiplied by from both sides.
So since x is multiplied by 6, you need to divide 6x by 6, and divide 20 by 6 6x/6 = 20/6
6x/6 = x 20/6 = 3 1/3 or 3.33
Your final answer should be x = 3 1/3 or x = 3.33 (they are the same thing)
Hope this helps you understand sorry if its still confusing I tried to make it simple.