Cậu vẽ nó bằng nhau nhé chứ tớ hết chỗ rùi k vẽ đc

Cậu tham khảo nhé

1. Lan has finished her homework, and I have already done it too.
2. I think you should do more exercise because it is good for your health.
3. I think volunteering because it make a difference.
4. My house is not as big as your house.
5. My hometown is different from this city.

\(A=\left(2\dfrac{1}{3}+3\dfrac{1}{2}\right):\left(-4\dfrac{1}{6}+3\dfrac{1}{7}\right)+7\dfrac{1}{2}\)

\(B=4\dfrac{25}{16}+25\cdot\left(\dfrac{9}{16}:\dfrac{125}{64}\right):\left(-\dfrac{27}{8}\right)\)

giải hộ mk nhanh nhanh nhoa ☺

\(\dfrac{x}{6}-\dfrac{1}{y}=\dfrac{1}{2}\)  a.  

\(\dfrac{5}{x}+\dfrac{y}{4}=\dfrac{1}{8}\) b. 

Tìm các số x, y, z biết rằng : 

a. \(\dfrac{2x}{3}=\dfrac{3y}{4}=\dfrac{4z}{5}\)và x + y - z = 38

b. 7x = 10y = 12z và x + y + z = 685

a, x : y : z = 3 : 4 : 5 và 5z^2 - 3x^2 - 2y^2 = 594