4 5y 2 2 3y 7 July 8, 2019 16 32 64 128 5y 3 4 3y 2 7 2 0 5 4(3y - 2) - 7 2(2y - 3) = 1 2 2 5/7y =5/42 4 + (7y - 3)/5 (3y + 5)/4 - (3y)/2
