а) 84 : x = 14
84 = 14x
14x = 84
x = 6
б) y : 23 = 23
1/23 y = 23
y = 529
в) 75 : (69 - 4z) = 15
75 = 15 × (64 - 4z)
5 = 64 - 4z
4z = 69 - 5
4z = 64
z = 16
х= 6
у = 529
z = 16
Объяснение:
1) х = 84:14
х= 6
2) у = 23*23
у = 529
3) 69 -4z = 75:15
69 -4z = 5
4z = 64
z = 16
