Answer:
See Explanation
Step-by-step explanation:
The question is incomplete. However, you can make use of the following tips to answer your question.
We have that:
[tex]x = 10.8[/tex]
[tex]x + 29.2 = 40[/tex]
because
[tex]10.8 + 29.2 = 40[/tex]
Another possible expression is:
[tex]50.8 - x = 40[/tex]
This is so, because:
[tex]50.8 - 10.8 = 40[/tex]
Another one is:
[tex]2x + 18.4 = 40[/tex]
This is so because:
[tex]2 * 10.8 + 18.4 = 40[/tex]
So, all you need to do is to substitute 10.8 for x in the given expression,
If the solution equates to 40, then that's your answer