Answer: y = 80
Step-by-step explanation: In this problem, notice that y is being divided by 4 so to get y by itself,
we need to multiply both sides of the equation by 4.
Notice that on the left side, the 4 and 4 cancel each other out so we're just left with y. On the right side, we have (20)(4) which is 80 so we have y = 80.
Finally, remember that we can check our answer by substituting an 80 back into the original equation and we have [tex]\frac{(80)}{4} = 20[/tex] which is a true statement so we know our answer is correct.