Algebra Vocabulary

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Across
  1. 1. the 7 in 7x
  2. 4. 7x
  3. 5. 7x + 9 = 30
  4. 7. x
  5. 8. 9
Down
  1. 2. 7x + 9
  2. 3. 7x + 9x ≡ 16x
  3. 6. 7x + 9x