1 X 2 X 3 y a = 24
39.
40. a x 2 x 54 140
41.
36:3:3 x a = 20 x 2
42_a: 8 + 20 000 = 20 003
43.
(64 + 123 + 239) : a = 1 278
44.
(394 – 123 - a): 2 = 108
45.
44 x 5:10 + a = 331​