Частина 1. Номер 336

x + 40 = 65
x = 65 – 40
x = 25
25 + 40 = 65
65 = 65

18 + x = 36
x = 36 – 18
x = 18
18 + 18 = 36
36 = 36

92 – x = 22
x = 92 – 22
x = 70
92 – 70 = 22
22 = 22