chúc ngày 20/10 vui vẻ và trẻ đẹp ạ

a) 65. 48 + 35 . 48 + 12 . 58 - 12 .  38

b) 2018⁰ + { 15² : [ 175 - ( 2³ . 5² - 6 . 25 ) ] }

1.

a) 2x + 5 = 34 : 32 

b) ( 3x - 24 ) . 73 = 2.74 
c) [ 3 . ( 42 - x ) + 15 = 23 . 3

d) 126 + ( 132 - x ) = 300 

2.

a) 120 - ( x + 55 ) = 60 

b) ( 7x - 11)3 = 25 .52 + 200 

c) 2x + 2x+4 = 544 

3. 

a) 10 + 2x = 49 : 47 

b) 70 - 5 ( x - 3 ) = 45 

c) 4 + 95 : x = 143 : 142 - 23

II. Finish the sentence so that it means the same as the sentence before it.
1. There is a big stadium in my place
-> My place
2. My bedroom has two chairs, a desk, a bed and a wardrobe.
-> There are......
3. My house is smaller than your house.
→ Your house
4. The tall tree is behind my house.
My house is ...
5. Lan likes orange juice best.
→ Lan's favourite..
1923