Hi there!

First we need to work out the parenthesis, which can for instance be done using rainbow technique.

Now subtract 3 from both sides.

And finally add 3x to both sides.

The 4th answer choice is correct.
29 36 39 45 49 51
39 + 45 = 84
84 ÷ 2 = 42
Answer: Median is 42.
Sorry for taking so long. Try typing in the whole question on google you will get lots of websites, it wasn't letting me post any here.
All the websites have $45 for the second sentence, but idk if they could help.
And when you figure it out let me know because it was really bothering me. lol
Answer:
The answer is:
Option 4; (14+ 9) 4 is twice as much as(14 + 9) 2
Thanks