(14,17 - y) . 2/9 = 1/3
14,17 - y = 1/3 : 2/9
14,17 - y = 3/2
y = 14,17 - 3/2
y = 12,67
Chúc bạn học tốt ^^
\(\left(14,17-y\right).\frac{2}{9}=\frac{1}{3}\)
\(\Rightarrow14,17-y=\frac{1}{3}:\frac{2}{9}\)
\(\Rightarrow14,17-y=\frac{3}{2}\)
\(y=14,17-\frac{3}{2}\)
\(y=\frac{1267}{100}=12,67\)
\(\left(14,17-y\right).\frac{2}{9}=\frac{1}{3}\)
\(\Rightarrow\left(14,17-y\right)=\frac{1}{3}:\frac{2}{9}=\frac{1}{3}.\frac{9}{2}=\frac{3}{2}\)
\(\Rightarrow y=14,17-\frac{3}{2}=\frac{1417}{100}-\frac{3}{2}=\frac{1417}{100}-\frac{150}{100}=\frac{1267}{100}=12,67\)
Vậy : \(y=12,67\)
