?÷4=5(ост.3), ?÷7=5(ост.4), ?÷3=8(ост.1), 37÷?=6(ост.1), 47÷?=4(ост.7), 28÷?=4(ост.4).....

х : 4 = 5 (ост.3)х = 5 * 4 + 3х = 23 х : 7 = 5 (ост.4)х = 5 * 7 + 4х = 39  х : 3 = 8 (ост.1)х = 8 * 3 + 1х = 25  37 : х = 6 (ост.1)х = (37 - 1) : 6х = 6  47 : х = 4 (ост.7)х = (47 - 7) : 4х = 10  28 : х = 4 (ост.4)х = (28 - 4) : 4х = 6