\(2x-26=52\)

\(\Leftrightarrow2x=78\)

\(\Leftrightarrow x=39\)

Vậy ..............

Đề sai nếu mà là 2x có là 2 gì đi nữa trừ đi 26 cũng ko bằng 52 đc phải là cộng
 

Tổng độ dài 2 đáy của hình thang đó là: 

\(30\times2:5=12\left(cm\right)\)

Độ dài đáy bé của hình thang đó là: 

\(\left(12-2\right):2=5\left(cm\right)\)

Độ dài đáy lớn của hình thang đó là: 

\(12-5=7\left(cm\right)\)

Đáp số: đáy bé: \(5cm\), đáy lớn: \(7cm\)

Chúc bạn học tốt !!!

Bài giải :

Tổng độ dài 2 đáy hình thang là :

          30x2:5=12(cm²)

Đáy bé hình thang là :

        (12-2):2=5(cm)

Đáy lớn hình thang là :

        5+2=7(cm)

               Đáp số : Đáy bé : 5cm; 

                             Đáy lớn : 7cm.

=4+31+21

=35+21

=56

T.I.C.K

TL :

    4 + 33 - 2 + 4 x 7

= 37  - 2 + 4 x 7

=  35 + 4 x 7

= 35  +  28

=   63

ai trả lời nhanh cho mk dc ko mk cần gấp

Dư 3

:D

Bạn có bị nhầm lẫn ở đâu không ? Nếu bạn có nhầm lẫn thì cho mình xin lại đề bài.

Hi everyone
Today, I am glad to introduce my house. Exactly, our house. I live here with 5 other people as a family. We rented this house at 6 million VNĐ a month. It has 4 floors. The first floor is a living room as well as the dining room. Of course, now we used as a garage. On the right hand side is our kitchen where we cook and one toilet.
The 2nd floor has 2 rooms and one toilet between. My room is on the left. welcome to my room. It always be bright as a result of 2 big windows that was decorated with glass sker. My room is small but has a lot of furniture. The most importance is my laptop which connect me with the world. I surf web, facebook, youtube, anything else. The next is my TV. One of my favorite film is series sitcom "friends". It is quite interesting and good for learning English. This is my fridge with food and drink. The bear is a gift from my friend in my birthday. This is laundry basket where i put dirty clothes and then do the laundry and hang up on the top floor. Finally, My books and many different things are there. Maybe, I have everything I need in this room. 
Oh I forgot, the 3rd floor is the same as the 2nd floor. That's all. 

Hi everyone
Today, I am glad to introduce my house. Exactly, our house. I live here with 5 other people as a family. We rented this house at 6 million VNĐ a month. It has 4 floors. The first floor is a living room as well as the dining room. Of course, now we used as a garage. On the right hand side is our kitchen where we cook and one toilet.
The 2nd floor has 2 rooms and one toilet between. My room is on the left. welcome to my room. It always be bright as a result of 2 big windows that was decorated with glass sker. My room is small but has a lot of furniture. The most importance is my laptop which connect me with the world. I surf web, facebook, youtube, anything else. The next is my TV. One of my favorite film is series sitcom "friends". It is quite interesting and good for learning English. This is my fridge with food and drink. The bear is a gift from my friend in my birthday. This is laundry basket where i put dirty clothes and then do the laundry and hang up on the top floor. Finally, My books and many different things are there. Maybe, I have everything I need in this room. 
Oh I forgot, the 3rd floor is the same as the 2nd floor. That's all. Thank you for listening.

Chúc bạn học tốt !!!

I live in 강변 which is a quiet residential area. I live on the 24th floor in a 25 story apartment. There are 3 bed rooms, 2 bathrooms, a kitchen and a living room. When I enter my house, I can see a spacious living room. In the living room, there is a TV, a sofa, a computer, a cabinet, some paintings on the wall On the right, there is my room . My room is not that big, so there's nothing much inside. There is a small bed, a book shelf, and a desk. Next to my room, there is a kitchen which has a lot of stuff such as refrigerator, sink, stove and microwave oven. Across the kitchen is the master bed room where my parents sleep. In my parent’s room, I can see a bed, a dresser closet, and a desk. I usually spend time in the living watching TV. because It has a big window. So I can enjoy a nice view of outside. Also I can get enough sunshine during the day. So I feel very warm. Even though my house is a little bit old, it is a very comfortable and cozy place for me.