AB + B = 56 tenglik o'rinli bo'lsa, AB ikki xonali sonidagi A raqamining qiymatini toping.

  1. 3
  2. 4
  3. 6
  4. 7

📝 Detailed explanation

(10A + B) + B = 56 ⇒ 10A + 2B = 56 ⇒ 5A + B = 28. A va B raqam bo'lgani uchun A = 4 va B = 8 bo'lgandagina tenglik bajariladi (48 + 8 = 56). Demak, A = 4.
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