Given that the original content is nonsensical and does not provide a coherent mathematical question or task, I will rewrite it to make sense:
-----
Given [tex] x = 0.4 [/tex],
evaluate the following expressions:
1. [tex] -x [/tex]
2. [tex] 3x [/tex]
3. [tex] x - 0.4 [/tex]
-----
This rewrite creates a clear mathematical task based on the original nonsensical content.