Hello, thank you for taking the time to post your question!
If you let “t” represent the number of hours that Maggie drove the tractor, then the equation for the weekly wages here is
12t + 10(2t) = 416 because she made $416 total and she worked twice as long in the office
From there then you can solve that expression algebraically for the value of “t”
12t + 20t = 416
32t = 416
t = 416/32 = 13, meaning that Maggie worked 13 hours driving the tractor
then for the office hours you want to take 2(13) = 26, meaning that she spent 26 hours working in the office
I hope that helps you get moving in a better direction on this type of question! Feel free to reach out if you have any additional questions beyond that :)
Samantha M.
12/10/15