If steve's age is decreased by 12 years, and that difference is multiplied by 3, the result is 24 years.

24/3+12=20

20-12=8, 8*3=24

days of the week

step-by-step explanation:

javier earned more money then kyle, so that won't always be a constant term, but the days of the week do not change so that term is always constant.

edit: i meant

simplified version :

3y^2-10y^2x^4+40x^2+3y^2/2x^2