x = 7/25 + ( -1/5)
x = 7/25 + (-5/25)
x = 2/25
vậy x = 2/25
x=7/25+-1/5
x = 7/25 + ( -1/5)
x = 7/25 + (-5/25)
x = 2/25
vậy x = 2/25
x=\(\frac{7}{25}\)+\(\frac{-1}{5}\)
x=\(\frac{7}{25}\)+\(\frac{-5}{25}\)
x=\(\frac{2}{25}\)
\(x=\frac{7}{25}+\frac{-1}{5}\)
\(x=\frac{7}{25}+\frac{-5}{25}\)
\(x=\frac{2}{25}\)