Bài 1(1 điểm): Sắp xếp các số trên theo thứ tự tăng dần: -11 ; 12 ; -10 ; |-9| ; 23 ; 0; 150; 10 Bài 2(2 điểm): Tính hợp lý (nếu có thể): b) -23 . 63 + 23 . 21 – 58 . 23 Bài 3(2,5 điểm): Tìm số nguyên x biết: |2x-1|-3=4 2x + 12 = 3x – 21 2x2 – 1 = 49 Bài 4(1 điểm): Cho biểu thức: A = (-a - b + c) – (-a – b – c) a) Bỏ ngoặc rồi thu gọn A b) Tính giá trị của A khi a = 1; b = -1; c = -2 Bài 5(0,5 điểm): Tìm tất cả các số nguyên a biết: (6a +1) ( 3a -1) Làm hộ nha vote 5* cảm ơn nhìu nhìu

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