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

Bài 1: Tìm x

a) x - 452 = 77 + 48

b) x + 58 = 64 + 58

c) x- 1 – 2 – 3 – 4 = 0