[119 – (X – 6)] = 24 C) 23(X – 102) + 20 = 28 + 22

Bài 5 (1,5đ): Tìm x: a) 7

48

: 7

46

– x = 2

3

.1

15

b) 2448 :[119 – (x – 6)] = 24 c) 2

3

(x – 10

2

) + 20 = 2

8

+ 2

2