\(y:2,5+9,6\cdot y=7,5-3\)
\(y:\frac{25}{10}+9,6\cdot y=4,5\)
\(y\cdot\frac{10}{25}+9,6\cdot y=4,5\)
\(y\cdot0,4+9,6\cdot y=4,5\)
\(y\left(0,4+9,6\right)=4,5\)
\(y\cdot10=4,5\)
\(\Rightarrow y=0,45\)
P/s: Hoq chắc :<
y : 2,5 + 9,6 x y = 7,5 - 3
y : \(\frac{25}{10}\) + \(\frac{96}{10}\) x y = 3,5
y x \(\frac{10}{25}\)+ \(\frac{96}{10}\) x y = 3,5
y x (\(\frac{2}{5}+\frac{48}{5}\)) = \(\frac{35}{10}\)
y x \(\frac{50}{5}\)= \(\frac{7}{2}\)
y x 10 = \(\frac{7}{2}\)
y = \(\frac{7}{2}\) : 10
y = \(\frac{7}{2}\) x \(\frac{1}{10}\)
y = \(\frac{7}{20}\)
Ko bik đúng hay ko nữa, sai thì thui đừng k sai nha
y : 2,5 + 9,6 x y = 7,5 - 3
y : 2,5 + 9,6 x y = 4,5
y : 2,5 = 4,5 / 9,6
y : 2,5 = 0,46875
y = 0,46875 x 2,5
y = 1,171875
\(y:2,5+9,6\times y=7,5-3\)
\(\Rightarrow y:\frac{25}{10}+\frac{96}{10}\times y=7,5-3\)
\(\Rightarrow y\times\frac{10}{25}+\frac{96}{10}\times y=7,5-3\)
\(\Rightarrow y\times\left[\frac{10}{25}+\frac{96}{10}\right]=7,5-3\)
\(\Rightarrow y\times\left[\frac{2}{5}+\frac{48}{5}\right]=7,5-3\)
\(\Rightarrow y\times\frac{50}{5}=7,5-3\)
\(\Rightarrow y\times10=4,5\)
\(\Rightarrow y=4,5:10=0,45\)
