Giúp mik với mn...
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TC
25 tháng 3 2022
a)\(=>x=\left(-\dfrac{1}{2}+\dfrac{1}{4}\right):2=-\dfrac{1}{8}\)
O
25 tháng 3 2022
a) \(2x-\dfrac{1}{4}=\dfrac{-1}{2}\)
\(2x=\dfrac{-1}{2}+\dfrac{1}{4}\)
\(2x=-\dfrac{1}{4}\)
\(x=-\dfrac{1}{4}\div2\)
\(x=-\dfrac{1}{8}\)
b) \(\dfrac{13}{3}-\dfrac{1}{3}\cdot\left(x+1\right)=\dfrac{4}{3}\)
\(\dfrac{1}{3}\cdot\left(x+1\right)=\dfrac{13}{3}-\dfrac{4}{3}\)
\(\dfrac{1}{3}\cdot\left(x+1\right)=3\)
\(x+1=3\div\dfrac{1}{3}\)
\(x+1=9\)
\(x=9-1\)
\(x=8\)
T
1
DT
Đỗ Thanh Hải
CTVVIP
19 tháng 8 2021
Bạn sai cta nhé, sắp not xắp
Tham khảo
1. A special kind of tea is sold here
2. All the cars and trucks have been searched
3. He was put in prison by the goverment last years
4. We will be met by her parents at the station tomorrow
5. A meeting is being held by Mr. Brown in the hall
Bài 2
1 Tea can't be made with cold water
2 Some of my books have been taken away.
3 Some pictures were taken away by the boys.
4 This room may be used for the classroom.
5 This machine mustn't be used after 5:30 p.m
6 Mr Cole used to be visited at weekends by John.
7 All the homework ought to be done by her
