Tìm x, biết : a) x + {1}/{3} = 5/3 b) 4/3 : (2x-3) = 2/3

a)\(x + \frac{1}{3} = \frac{5}{3}\)

\(x = \frac{5}{3} - \frac{1}{3}\)

\(x = \frac{4}{3}\)

Vậy \(x = \frac{4}{3}\).

b)\(\frac{4}{3}:\left( {2x - 3} \right) = \frac{2}{3}\)

\(2x - 3 = \frac{4}{3}:\frac{2}{3}\)

\(2x - 3 = 2\)

\(2x = 5\)

\(x = \frac{5}{2}\)

Vậy \(x = \frac{5}{2}\).