Răspuns :
8 X - 24 = 16
8 X + - 24 = 16
- 24 + 8 X = 16
- 24 + 24 + 8 X = 16 + 24
- 24 + 24 = 0
0 + 8 X = 16 + 24
8 X = 16 + 24
16 + 24 = 40
8 X = 40
X = 5
8 X + - 24 = 16
- 24 + 8 X = 16
- 24 + 24 + 8 X = 16 + 24
- 24 + 24 = 0
0 + 8 X = 16 + 24
8 X = 16 + 24
16 + 24 = 40
8 X = 40
X = 5