Math-Tastic

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Across
  1. 3. An integer that is added to, subtracted from the variable
  2. 4. A group of integers and variables, an '=' sign and more integers
  3. 6. This is how I check my answer
  4. 7. An amazing, awesome Math-Tastic student
  5. 8. Simply the opposite
Down
  1. 1. Similar variables and their coefficients or just plain integers
  2. 2. Any letter from of the alphabet from 'a' to 'z' except 'i'
  3. 3. I am multiplied with or divided by the variable
  4. 5. Addition, subtraction, multiplication or division