SOLUTION: I know this is easy, but my Professor saysI have an error in combining the "x" terms combine like terms -9x

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Question 888615:
I know this is easy, but my Professor saysI have an error in combining the "x" terms

combine like terms
-9x - 13x + 7
-22x + 7
Answer by harpazo(655) About Me  (Show Source):
You can put this solution on YOUR website!
9x - 13x + 7 -22x + 7 =
-4x + 7 - 22x + 7 =

Answer: -26x + 14