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

Question

Bài 121: Tìm x:a) x – 452 = 77 + 48b) x + 58 = 64 + 58c) x – 1 – 2 – 3 – 4 = 0

Answer

c) x – 1 – 2 – 3 – 4 = 0

Bài 121: Tìm x: