Quyidagi berilgan tenglamalarning qaysi birining yechimi yo'q?

  1. 2 × (−x + 1) − 4 = −2x + 5
  2. x − 1 = −2
  3. 9x − 1 = 7x
  4. 2 × (x + 1) = 3 × (x + 5)

📝 Detailed explanation

Birinchi tenglamani soddalashtiramiz: −2x + 2 − 4 = −2x + 5 ⇒ −2x − 2 = −2x + 5 ⇒ −2 = 5. Bu noto'g'ri tenglik bo'lgani uchun tenglama yechimga ega emas.
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