Răspuns:
x + x + x + x + x = 5x
x + 34 - 6a ( Lada)
x + 34 - 4 = x + 30 - 7a
2 (x + 30) = 2x + 60 - 8a
5x + x + 34 + x + 30 + 2x + 60 =340✨
9x + 124 = 340
9x = 340 - 124
9x = 216
x = 24 kg
24 kg + 34 kg = 58 kg
58 kg - 4 kg = 54 kg
54 kg × 2 = 108 kg
24 + 24 + 24 + 24 + 24 + 58 + 54 + 108 = 24 × 5 + 58 + 54 + 108 = 340
Bafta!