
Matt H. answered 12/06/14
Tutor
5.0
(335)
What are these letters doing in my equations? Here comes algebra!
Cynthia, it looks great! I would make one TINY change:
where you have 22 + 90 = 112, make it 2x = 112, otherwise your teacher will ask why the x disappeared in that line and then came back. :-)
Nice work!
Matt in NY