Answer:
Step-by-step explanation:
[tex]2 + 1 = \frac{1}{2}x - x[/tex]
[tex]3 = - \frac{1}{2}x[/tex]
[tex]x = \frac{ - 3}{ \frac{1}{2} } \\ x = \frac{ - 6}{1} \\ x = - 6[/tex]
Hope this helps :)