Question

\(\frac{3}{5}.x-x=\frac{-4}{15}\)

Các bạn nhớ ghi cách giải nữa nhé :D Mình sẽ tick cho <3

Answer 1

\(\frac{3}{5}.x-x=\frac{-4}{15}\)

<=>\(x.\left(\frac{3}{5}-1\right)=\frac{-4}{15}\)

<=>\(\frac{-2}{5}.x=\frac{-4}{15}\)

<=>\(x=\frac{-4}{15}:\frac{-2}{5}\)

<=>\(x=\frac{2}{3}\)

vậy \(x=\frac{2}{3}\)

Answer 2

Ta có:\(\frac{3}{5}.x-x=-\frac{4}{15}\)

\(\left(\frac{3}{5}-1\right).x=-\frac{4}{15}\)

\(\left(\frac{3}{5}-\frac{5}{5}\right).x=-\frac{4}{15}\)

\(\left(-\frac{2}{5}\right).x=-\frac{4}{15}\)

\(x=-\frac{4}{15}:\left(-\frac{2}{5}\right)\)

\(x=-\frac{4}{15}.\left(-\frac{5}{2}\right)\)

\(x=\frac{\left(-4\right).\left(-5\right)}{15.2}\)

\(x=\frac{20}{30}=\frac{2}{3}\)