б)13у+15у-24=60,е)528:к-25=64 к)5905-27u=316

б) 13у+15у-24 = 6028y = 60+2428y = 84y = 84:28y = 3е) 528:k-25 = 64528:k = 64+25528:k = 89k = 528:89k = 5⁸³/₈₉к) 5905-27u = 316-27u = 316-5905-27u = -558927u = 5589u = 207

б)13у+15у-24=60,28у=60+24,28у=84у=84:28у=3е)528:к-25=64 528:к=64 +25528:к=89к=528:89к=5 83/89к)5905-27u=316 27u=5905-31627u=5589u=5589:27u=207