The difference between two numbers is 19. Half the larger number plus twice the smaller number is 12. What are the numbers?
This is the equation I came up with but I can't make it work. x-y=19 1/2x+2y=12 x2 --> x + 4y = 24 ---------- x - y = 19 x +4y = 24 ------------ Subtract -5y = -5 y = 1 x = 20