prompt: Thomas, Toby, and Rebecca worked a total of 157 hours in one week.  Thomas worked x hours.  Toby worked 10 hours less than twice what Thomas worked, and Rebecca worked 8 hours less than Toby.  How many hours did Rebecca work?
messages.content: Thomas, Toby, and Rebecca worked a total of 157 hours in one week.  Thomas worked x hours.  Toby worked 10 hours less than twice what Thomas worked, and Rebecca worked 8 hours less than Toby.  How many hours did Rebecca work?
messages.role: user
messages.content: Toby: 2x-10
  Rebecca: (2x-10)-8=2x-18
  Total:2x-10+2x-18+x=157
  5x-28=157
  5x=185
  x=<<37=37>>37 hours
  Rebecca:2(37)-18=56 hours
  #### 56
messages.role: assistant