\(\frac{7}{5}x=\frac{-3}{25}\)
\(x=\frac{-3}{35}\)
Vậy...
\(x+\frac{2}{5}x=\frac{-3}{25}\)
\(\frac{7}{5}x=\frac{-3}{25}\)
\(x=\frac{-3}{25}:\frac{7}{5}=\frac{-3}{25}.\frac{5}{7}=\frac{-3}{35}\)
x + 2/5x = -3/2
x = -3/2 - 2/5
x = -19/10
Vay x = -19/10