Ответ:\((24-6):2=18:2=9\).\((15-8)\cdot3=7\cdot3=21\).\(12:6\cdot9=2\cdot9=18\).\(3\cdot7-12=21-12=9\).\(87-38=49\).\(26+18=44\).\(73+17=90\).\(93-40=53\).Ответ: 9; 21; 18; 9; 49; 44; 90; 53.