Respuesta :

Answer:

x is -0.5

Step-by-step explanation:

[tex]{ \tt{x - 3x - 1 = 0}} \\ { \tt{x(1 - 3) - 1 = 0}} \\ { \tt{ - 2x = 1}} \\ \\ { \tt{x = - \frac{1}{2} }}[/tex]