Question

2-x/4<4 

Tìm X

Answer 1

\(\dfrac{2-x}{4}< 4\)

\(\Leftrightarrow2-x< 16\)

\(\Leftrightarrow-x< 16-2\)

\(\Leftrightarrow-x< 14\)

\(\Leftrightarrow x>-14\)

Answer 2

\(=>\dfrac{2-x}{4}< \dfrac{4}{1}\)

\(=>x-2< 1\)

\(=>-x>-1=>x>1\)

Answer 3

\(\dfrac{2-x}{4}< 4\)

\(\Leftrightarrow2x-4< 16\)

\(\Leftrightarrow2x< 16+4\)

\(\Leftrightarrow2x< 20\)

\(\Leftrightarrow x< 10\)

Vậy \(S=\left\{x|x< 10\right\}\)