16-9(целых) 1\2у=3у+21

Question

16-9(целых) 1\2у=3у+21

Answer 1

16 - 9 1/2у = 3у + 21
16 - 21 = 3у + 9 1/2у
-5 = 12 1/2у
у = -5 : 12 1/2 = -5/1 : 25/2 = -5/1 * 2/25 = -2/5