Tìm x , biết: b) 2/ 3 − 1 4/ 15 x = − 3/ 5 ;
Giải thích
b) \(\frac{2}{3} - 1\frac{4}{{15}}x = \frac{{ - 3}}{5}\)
\(1\frac{4}{{15}}x = \frac{2}{3} - \frac{{ - 3}}{5}\)
\(\frac{{19}}{{15}}x = \frac{{19}}{{15}}\)
\(x = \frac{{19}}{{15}}:\frac{{19}}{{15}}\)
\(x = 1\)
Vậy \(x = 1\).