TÌM X NGUYÊNA) 3(X + 6) – 53 = 2(X – 8) – 1B) (X – 140)

Bài 2: Tìm x nguyêna) 3(x + 6) – 5

3

= 2(x – 8) – 1b) (x – 140):7 = 3

3

– 2

3

.3c) 3

x + 1

+ 3

x + 2

= 324