Algebra

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Across
  1. 2. The number before a letter
  2. 4. Rewriting an expression in its basic form
  3. 6. Terms that can be added together
  4. 8. An algebraic "sentence"
  5. 9. The name of this topic
Down
  1. 1. Putting into brackets
  2. 3. Solve 2x + 5 = 13 x = ?
  3. 5. A letter that represents a number
  4. 7. Multiplying out brackets