Ответ:
5 ⋅ 1 = 5
0 ⋅ 5 = 0
5 : 5 = 1
4 + 15 : 3 = 4 + 5 = 9
5 ⋅ 6 - 35 : 7 = 30 - 5 = 25
8 ⋅ 5 + 5 ⋅ 5 = 40 + 25 = 65
7 ⋅ 5 - 45 : 5 = 35 - 9 = 26
16 + 24 : 8 = 16 + 3 = 19
(16 + 24) : 8 = 40 : 8 = 5
5 ⋅ 9 - 7 = 45 - 7 = 38
5 ⋅ (9 - 7) = 5 ⋅ 2 = 10
Решим уравнения:
8 ⋅ x = 40
x = 40 : 8
x = 5
45 : x = 5
x = 45 : 5
x = 9
x : 5 = 3
x = 3 ⋅ 5
x = 15
Ответ: