515 : ( x +35) = 5
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NH
27 tháng 12 2021
2.(-x-3)=53-27
2.(-x-3)=26
-x-3=26/2
-x-3=13
-x=13+3
-x=16
=> x=-16
27 tháng 12 2021
2.(-x-3)+27=53
2.(-x-3) =53-27
2.(-x-3) =26
(-x-3) =26:2
-x-3 =13
=> -x= 16
=> x= -16
TP
0
TL
0
NH
1
PB
1
20 tháng 12 2022
\(m_{NaCl}=\dfrac{150.10}{100}=15\left(g\right)\\ m_{H_2O}=150-15=135\left(g\right)\)
Đong 15 gam NaCl khan, 135 gam nước cho sẵn vào cốc nước. Sau đó hóa tan 15 gam NaCl vào nước, dùng đũa thủy tinh khuấy đều thu được dd như theo yêu cầu của đề bài
MT
2
NT
Nguyễn Thị Thương Hoài
Giáo viên
VIP
14 tháng 11 2024
58751 - (10425 + y) = 3828 : 12
58751 - 10425 - y = 319
48326 - y = 319
y = 48326 - 319
y = 48007
Vậy y = 48007
NT
Nguyễn Thị Thương Hoài
Giáo viên
VIP
14 tháng 11 2024
5.(\(x+35\)) = 515
\(x+35\) = 515 : 5
\(x+35\) = 103
\(x\) = 103 - 35
\(x\) = 68
Vậy \(x=68\)
16 tháng 8 2023
a) \(\dfrac{1}{2}-\left(x+\dfrac{1}{3}\right)=\dfrac{5}{6}\)
\(\Rightarrow x+\dfrac{1}{3}=\dfrac{1}{2}-\dfrac{5}{6}\)
\(\Rightarrow x+\dfrac{1}{3}=\dfrac{-1}{3}\)
\(\Rightarrow x=\dfrac{-1}{3}-\dfrac{1}{3}\)
\(\Rightarrow x=\dfrac{-2}{3}\)
b)\(\dfrac{3}{4}-\left(x+\dfrac{1}{2}\right)=\dfrac{4}{5}\)
\(\Rightarrow x+\dfrac{1}{2}=\dfrac{3}{4}-\dfrac{4}{5}\)
\(\Rightarrow x+\dfrac{1}{2}=\dfrac{-1}{20}\)
\(\Rightarrow x=\dfrac{-1}{20}-\dfrac{1}{2}\)
\(\Rightarrow x=\dfrac{-11}{20}\)
16 tháng 8 2023
c) \(\dfrac{3}{35}-\left(\dfrac{3}{5}+x\right)=\dfrac{2}{7}\)
\(\Rightarrow\dfrac{3}{5}+x=\dfrac{3}{35}-\dfrac{2}{7}\)
\(\Rightarrow\dfrac{3}{5}+x=\dfrac{-1}{5}\)
\(\Rightarrow x=\dfrac{-1}{5}-\dfrac{3}{5}\)
\(\Rightarrow x=\dfrac{-4}{5}\)
d)\(\dfrac{2}{3}.x=\dfrac{4}{27}\)
\(\Rightarrow x=\dfrac{4}{27}:\dfrac{2}{3}\)
\(\Rightarrow x=\dfrac{2}{9}\)
e) \(\dfrac{-3}{5}.x=\dfrac{21}{10}\)
\(\Rightarrow x=\dfrac{21}{10}:\dfrac{-3}{5}\)
\(\Rightarrow x=\dfrac{-7}{2}\)
NT
5
7 tháng 8 2016
35.x.(x-1)=0
x.(x-1)=0:35
x.(x-1)=0
=>x=0 hoặc x-1=0
x=0 hoặc x=1
7 tháng 8 2016
35 x ( x - 1 ) = 0
x - 1 = 0 : 35
x - 1 = 0
x = 0 + 1
x = 1
24 tháng 5 2018
When I complete a journey, I would always try recalling the wonderful moments and note it down so that next time I could make it even merrier.Of the entire journey that I have done, I thoroughly enjoyed the journey that I made through the FlightLast vacation, my family decided we would make a Middle East trip for about 5-7 days and return and so the preparations for the same was being carried on. We had our relatives and friends down there who had been inviting us for some time and this time we decided we would make it.We booked our kets and on the scheduled day we started our journey. We reached the airport on time and the formalities for boarding the flight were all very smooth. We boarded the flight and made ourselves comfortable.I had my little sister too and she was all excited and happy to be on a plane. After the announcements for the take off were made, we fastened our seat belts and the flight slowly started to move.During the take off time, my sister and I were a bit scared, but once the flight was back in balance, we were relieved. I was at the window seat and so I enjoyed the sight that I saw outside. It was so beautiful.The buildings all small and nice greenery from above. After some time, we were served food. My mother helped us have the food and we enjoyed the food. We made friends in the plane and had some nice time chatting with them.I played games and watched my favourite cartoon shows. After some time I slept and took rest for some time. By the time I woke up, it was almost time to reach. I saw the oceans below us and when were nearing lands, it was a beautiful site. I enjoyed watching all this beautiful scenery from my window and finally, we landed at our destination. Though the journey came to an end, it was all very nice and I d it very much.
CHÚC BẠN HỌC TỐT NHA>.<
BU
6 tháng 4 2022
REFER
The flower race on the river in my hometown is held in the first spring of the year. Today, the sky is clear. Hundreds of flowers race each other to bloom under the warm sun. People went to see the festival in large numbers. The two sides of Tra Giang River are bustling. Everyone is looking forward to the race. The racing boats are beautifully decorated, so are the flags. The operators on the boat were strong, muscular and agile guys. When hearing the whistle-blowing effect of the organizers, everyone turned their eyes forward. When receiving the "start" command, the Ao Dai rushes quickly, the riders are quick, non-stop. Water splashed, drums urged “Tung! Tung! Tung "resounds. The audience cheered with applause. Laughter, voices calling each other make the festival scene very lively.
C
6 tháng 4 2022
THAM KHẢO:
Halloween is a holiday celebrated on October 31st. The most common colors of the day are orange and black. Halloween comes from the ancient Celtic festival Samhain. The ancient Celts believed that on October 31st, now known as Halloween, the boundary between the living and the deceased is not clear, and the dead become dangerous for the living by causing problems such as sickness or damaged crops. On Halloween, the ancient Celts would place a skeleton by their window to represent the dead. Believing that the head was the most powerful part of the body, containing the spirit and knowledge, the Celts used the "head" of the vegetable to decorate their houses. On this day people often wear strange clothes as characters in horrible novels or movies to frighten others. People usually like to dress as ghosts, skeletons, or witches. Now Halloween is an official holiday in almost all European countries.
x=68
515 : (\(x+35\)) = 5
\(x+35\) = 515 : 5
\(x\) + 35 = 103
\(x=103-35\)
\(x=68\)
Vậy \(x=68\)