Respuesta :

[tex]3x + (-12x) - 5x \\ \\ 3x - 12x - 5x \\ \\ -14x \\ \\ Answer: \fbox {-14x} [/tex]
3x + (-12x) - 5x

Combine like terms.

3x + -12 = -9x

-9x - 5x = -14x

Answer: -14x