Algebra

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Across
  1. 2. a letter or symbol that stands in place of a number
  2. 3. the number placed before the variable
  3. 4. a collection of terms
  4. 7. 2xm is written as 2m
Down
  1. 1. written as a fraction
  2. 5. same as variable
  3. 6. write as simply as possible