\(\frac{4}{11}.y-\frac{6}{11}=\frac{2}{5}\Rightarrow\frac{4}{11}.y=\frac{52}{55}\Rightarrow y=\frac{13}{5}\)
Vậy :\(y=\frac{13}{5}\)
\(\frac{4}{11}\cdot y-\frac{6}{11}=\frac{2}{5}\)
\(\Rightarrow\frac{4}{11}\cdot y=\frac{2}{5}+\frac{6}{11}\)
\(\Rightarrow y=\frac{52}{55}:\frac{4}{11}\)
\(\Rightarrow y=\frac{13}{5}=2,6\)
Good luck!
4/11 x y - 6/11 = 2/5
= 4/11 x y = 2/5 + 6/11
= 4/11 x y = 52 /55
y = 52/55 : 4/11
y = 572/220
