Question

Giaỉ bptr sau

\(\dfrac{3x-2}{4}-x< \dfrac{x+2}{5}\)

Answer 1

\(\dfrac{3x-2}{4}-x< \dfrac{x+2}{5}\\ \Leftrightarrow\dfrac{5\left(3x-2\right)}{20}-\dfrac{20x}{20}-\dfrac{4\left(x+2\right)}{20}< 0\\ \Leftrightarrow15x-10-20x-4x-8< 0\\ \Leftrightarrow-9x-18< 0\\ \Leftrightarrow-9x< 18\\ \Leftrightarrow x>-2\)