ko hiểu câu hỏi

tìm x nha mg thông cảm nha

hihi tui quên viết đầu bài nha

tìm x nha

y = 9 nha bạn 

bạn cứ thử xem

hello

= 151515

k mk nha

chuc ban hocgioi

10101 x 15 = 151515

a: \(\frac{101}{606}:\frac23-\frac{10101}{60606}:\frac23\)

\(=\frac16:\frac23-\frac16:\frac23\)

\(=\frac16\times\frac32-\frac16\times\frac32=\frac16\times\left(\frac32-\frac32\right)=0\)

b: \(\frac{2002\times2005-1990}{2002\times2002+4016}\)

\(=\frac{2002\times\left(2002+3\right)-1990}{2002\times2002+4016}\)

\(=\frac{2002\times2002+6006-1990}{2002\times2002+4016}=\frac{2002\times2002+4016}{2002\times2002+4016}\)

=1

29/11.x+2/11=2/11

29/11.x=2/11-2/11

29/11.x=0

x=0:29/11

x=0

29/11 x  X + 2/11 = 2/11

29/11 x  X            = 2/11 - 2/11

29/11 x  X            = 0

              X            = 0 : 29/11

              X            = 0

3x+x3=121 =>x{3+3}=121 =>x9=121 =>sai 

đề sai

\(x-\frac{1}{4}=\frac{5}{3}\)

\(\Rightarrow x=\frac{23}{12}\)

\(x:\frac{5}{11}=22\)

\(\Rightarrow x=10\)

\(\frac{2}{4}+x=1\)

\(\Rightarrow x=\frac{1}{2}\)

\(x-\frac{11}{5}=\frac{2}{5}:\frac{2}{3}\)

\(\Rightarrow x-\frac{11}{5}=\frac{3}{5}\)

\(\Rightarrow x=\frac{18}{5}\)

\(a)x-\frac{1}{4}=\frac{5}{3}\)

\(\Rightarrow x=\frac{5}{3}+\frac{1}{4}=\frac{23}{12}\)

\(b)x:\frac{5}{11}=22\)

\(\Rightarrow x=22.\frac{5}{11}=10\)

\(c)\frac{2}{4}+x=1\)

\(x=1-\frac{2}{4}=\frac{1}{2}\)

\(d)x-\frac{11}{5}=\frac{2}{5}:\frac{2}{3}\)

\(\Rightarrow x-\frac{11}{5}=\frac{3}{5}\)

\(\Rightarrow x=\frac{3}{5}+\frac{11}{5}=\frac{14}{5}\)