(1,5Đ) TÌM X A) (X - 3,52) X 3 = 21,42 B) 12 X X - 34 = 56

Câu 2: (1,5đ) Tìm x

a) (x

- 3,52) x 3 = 21,42

b)

1

2

x

x

-

3

4

=

5

6