Question

qual o valor de X

2X-15<-X

Answer 1

2x - 15 < - x
2x + x < 15
3x < 15
x < 15/3
x < 5

Answer 2

Olá Tefhany ! 

$2x - 15 < - x \\ 2x + x < 15 \\ 3x < 15 \\ x < \frac{15}{3} \\ x < 5$

V < {( 5 )}

Tenha bons estudos !