Answer:
the numbers that work are: -15, 5, 3.5, and 4 3/4
Explanation:
20 >= 5 + 3x. Subtract 5 from both sides and we get 15 >= 3x. Divide both sides by 3 and we get 5 >=x. This means that x has to be less than or equal to 5, which means that the numbers that work are: -15, 5, 3.5, and 4 3/4.