Algebra vocabs

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Across
  1. 2. 4x-2y+1
  2. 5. x , y, a, k
  3. 6. 4y, 7y, -5y
  4. 7. 2, -4, 0.5
Down
  1. 1. number 2 in the term 2x
  2. 3. 2x+3=5
  3. 4. 3x, 5x , 2ab