MCQ Practice Mathematics 📖 If 2x + 2y = 7z, then what is the average of x, y and z? A 1.5z B 2z + 1 C 3z D z/3 Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up PreviousIf 13 = 13w/(1 - w), then (2w)2 = NextIf 2x - 4 < 4, then--