Question

2x-15<-x como resolver

Answer 1

2x+x<-15  
3x<15
x<15/3 
x<5   

Answer 2

$2x-15\ \textless \ -x \to\\\\ 2x+x\ \textless \ 15\to\\\\ 3x\ \textless \ 15\to\\\\ x\ \textless \ \dfrac{15}{3} \to\\\\x\ \textless \ 5\\\\\\ \large\boxed{\boxed{S = \{x \epsilon \mathbb{R} ~|~x~ \ \textless \ 5 \}}}$