TÌM XA) X - 452 = 77 + 48 B.X + 58 = 64 + 58 C.X- 1 – 2 – 3 – 4 = 0

Bài 1: Tìm xa) x - 452 = 77 + 48 b.x + 58 = 64 + 58 c.x- 1 – 2 – 3 – 4 = 0