Equations Vocabulary

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Across
  1. 3. two operations are ______ operations if they undo each other
  2. 4. separated by a + or -
  3. 7. terms are considered _____ terms if they have the same variable
  4. 8. a number
  5. 9. the number in front of a variable like the 4 in 4x
Down
  1. 1. a letter used to represent an unknown number
  2. 2. a math sentence without an equal sign
  3. 5. a math sentence with an equal sign
  4. 6. the answer to an equation