\(\Rightarrow x< \frac{2}{3}+\frac{3}{4}\)
\(\Rightarrow x< \frac{17}{12}\)
\(x-\frac{3}{4}< \frac{2}{3}\)
\(\Rightarrow x< \frac{2}{3}+\frac{3}{4}\)
\(\Rightarrow x< \frac{17}{12}\)
\(\Rightarrow\)\(x< \frac{2}{3}+\frac{3}{4}\)
\(\Rightarrow\)\(x< \frac{17}{12}\)
\(\Rightarrow\)\(x\inℚ,x< \frac{17}{12}\)
=>x<2/3+3/4
=>x<17/12 học tốt
x-3/4<2/3
=>x<2/3+3/4
=><17/12 k cho mk nha .:<<
x - 3/4 < 2/3
=> x < 3/4 + 2/3
=> x < 17/12
@Phèngg
