Respuesta :
Answer:
x - any real number
Step-by-step explanation:
[tex]\text{We know:}\\\\|a|\geq0\ \text{for any real number}\ a\\\\|3x|\geq0\to x\in\mathbb{R}[/tex]
Answer:
all real numbers
Step-by-step explanation:
I took the test and edge and got it right