Bài 2: Tìm x, biết:

a) \(\left(x-\dfrac{5}{8}\right).\dfrac{5}{18}=-\dfrac{15}{36}\)

b) \(\left(x-\dfrac{1}{3}\right)=\dfrac{5}{6}\)

Bài 1: Tính gái trị biểu thức sau:

1) \(\dfrac{-5}{2}:\left(\dfrac{3}{4}-\dfrac{1}{2}\right)\)

2) \(\dfrac{298}{719}:\left(\dfrac{1}{4}+\dfrac{1}{12}-\dfrac{1}{3}\right)-\dfrac{2011}{2012}\)

3) \(\dfrac{27.18+27.103-120.27}{15.33+33.12}\)

Bài 2: Tìm x, biết:

a) \(-0,6.x-\dfrac{7}{3}=5,4\)

b) \(2,8:\left(\dfrac{1}{5}-3.x\right)=1\dfrac{2}{5}\)

Tính giá trị biểu thức sau:

2) \(4\dfrac{1}{2}:\left(2,5-3\dfrac{3}{4}\right)+\left(-\dfrac{1}{2}\right)^2\)

Bài 2: Tìm x, biết:

a) \(5,2.x+7\dfrac{2}{5}=6\dfrac{3}{4}\)

b) \(2,4:\left(\dfrac{-1}{2}-x\right)=1\dfrac{3}{5}\)

Thực hiện phép tính sau:

2) \(B=\dfrac{13}{15}.0,15.3+\left(\dfrac{8}{15}-1\dfrac{19}{60}\right):1\dfrac{23}{24}\)

I. Hoàn thành các câu sau: 

1. A: “There's someone at the door.”  

B: “I _________________________ (get) it.”  

2. Joan thinks the Conservatives _____________________ (win) the next election.  

3. A: “I’m moving house tomorrow.”  

B: “I _________________________ (come) and help you.”  

4. If she passes the exam, she _________________________ (be) very happy.  

5. I _________________________ (be) there at four o'clock, I promise.  

6. A: “I’m cold.”   

B: “I ________________________ (turn) on the fire.”  

7. A: “She's late.”   

B: “Don't worry she _________________________ (come).”  

8. The meeting _________________________ (take) place at 6 p.m.  

9. If you eat all of that cake, you _________________________ (feel) sick.  

10. They _________________________ (be) at home at 10 o'clock. 

Bài 2: Tìm x, biết:

a) \(x-\dfrac{2}{3}=\dfrac{7}{12}\)

b) \(\dfrac{1}{2}.x+\dfrac{3}{5}.\left(x-2\right)=3\)

Bài 1: Thực hiện phép tính sau:

1) \(A=\dfrac{-2}{4}+\dfrac{2}{7}-\dfrac{5}{28}\)

2) \(B=\left(\dfrac{5}{7}.0,6-5:3\dfrac{1}{2}\right).\left(40\%-1,4\right).\left(-2\right)^3\)

Bài 2: Tìm x, biết:

a) \(x+\dfrac{-7}{15}=-1\dfrac{1}{20}\)

b) \(\left(3\dfrac{1}{2}-x\right).1\dfrac{1}{4}=-1\dfrac{1}{20}\)