14 * 2 = 28 14 * 2 = (10 + 4) * 2 = 10 * 2 + 4 * 2 = 28
24 * 2 = 48 24 * 2 = ( 20 + 4) * 2 = 20 * 2 + 4 * 2 = 48
34 * 2 = 68 34 * 2 = ( 30 + 4) * 2 = 30 * 2 + 4 * 2 = 68
44 * 2 = 88 44 * 2 = ( 40 + 4) * 2 = 40 * 2 + 4 * 2 = 88
54 * 2 = 108 54 * 2 = ( 50 + 4) * 2 = 50 * 2 + 4 * 2 = 108
64 * 2 = 128 64 * 2 = ( 60 + 4) * 2 = 60 * 2 + 4 * 2 = 128
74 * 2 = 148 74 * 2 = ( 70 + 4) * 2 = 70 * 2 + 4 * 2 = 148
84 * 2 = 168 84 * 2 = ( 80 + 4) * 2 = 80 * 2 + 4 * 2 = 168
94 * 2 = 188 94 * 2 = ( 90 + 4 ) * 2 = 90 * 2 + 4 * 2 = 188
Нужные числа: 14, 24, 34, 44, 54, 64, 74, 84, 94.
18 : 2 = 9 18 : 2 = ( 10 + 8) : 2 = 10 : 2 + 8 : 2 = 9
28 : 2 = 14 28 : 2 = ( 20 + 8) : 2 = 20 : 2 + 8 : 2 = 14
38 : 2 = 19 38 : 2 = ( 30 + 8) : 2 = 30 : 2 + 8 : 2 = 19
48 : 2 = 24 48 : 2 = ( 40 + 8) : 2 = 40 : 2 + 8 : 2 = 24
58 : 2 = 29 58 : 2 = ( 50 + 8) : 2 = 50 : 2 + 8 : 2 = 29
68 : 2 = 34 68 : 2 = ( 60 + 8) : 2 = 60 : 2 + 8 : 2 = 34
78 : 2 = 39 78 : 2 = ( 70 + 8) : 2 = 70 : 2 + 8 : 2 = 39
88 : 2 = 44 88 : 2 = ( 80 + 8) : 2 = 80 : 2 + 8 : 2 = 44
98 : 2 = 49 98 : 2 = ( 90 + 8) : 2 = 90 : 2 + 8 : 2 = 49
Нужные числа: 18, 28, 38, 48, 58, 68, 78, 88, 98.
40+х=32+2х
40-32=2х-х
2х-х=40-32
х=8