2 7 16y 3 5 20y 1 3 8y July 8, 2019 16 32 64 128 16. 1) 9 - 7y =2 5-3y 2(y 3 5) 7 3 6(2y 1) 2) (5y + 1)/4 + (3y + 2)/16 = 3
