Check Your Understanding If 2x + y 4 and 2x-y=8,solve for x and y. If x-y 10 and 2x+3y-0, solve for x and y. If x + y = 3 and y / x = 2, solve for x and y. If x y-4 and x - y 3 then x+2y is: The sum of Bill and Ted's age is 60. In two years, Bill will be three times as old as Ted. How old are Bill and Ted now? Bill's age Ted's age -16 years old 24 years old