Question

\(7\cdot x-\frac{2}{3}\cdot y-2\cdot x+\frac{7}{9}\cdot y\)\(với\)\(x=\frac{-1}{10};y=4,8\)

Answer 1

\(7.\frac{-1}{10}-\frac{2}{3}.4,8-2.\frac{-1}{10}+\frac{7}{9}.4,8\)8

\(\frac{-7}{10}-\frac{16}{5}-\frac{1}{5}+\frac{56}{15}\)

  \(=\frac{-11}{30}\)