Câu trả lời:

\(\frac{3}{4}+\frac{2}{5}\cdot x=\frac{29}{60}=>\frac{2}{5}.x=\frac{29}{60}-\frac{3}{4}=>\frac{2}{5}.x=-\frac{4}{15}=>x=-\frac{4}{15}:\frac{2}{5}=>x=-\frac{2}{3}\)