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3-86.

DiagramMultiple Choice: Which equation below is not a correct statement based on the information in the diagram? Homework Help ✎

  1.  3x + y = 180°

  2.  2x – 1º = 4º – x

  3.  2x – 1º = 5y – 10º

  4.  2x – 1º + 3x = 180º

  5.  all of these are correct

B because 2x − 1° and 4° − x are a linear pair so 2x − 1° + 4° − x = 180°.