Algebra terms

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Across
  1. 2. to find the final numerical value of an expression
  2. 4. terms that have the same variables and exponents
  3. 6. the result of an addition problem
  4. 9. a single part of an expression separated by plus or minus signs
  5. 10. a math phrase containing numbers and variables without an equal sign
  6. 13. a number that stands alone without a variable
  7. 15. keeping both sides of the equation equal
  8. 17. the result of a subtraction problem
  9. 18. a whole number that can be positive negative or zero
  10. 19. to replace a variable with a specific number
Down
  1. 1. to get the variable by itself on one side of the equation
  2. 3. the result of a division problem
  3. 5. the opposite operation used to undo another operation
  4. 7. a symbol indicating a math move like add or subtract
  5. 8. to condense an expression by combining like terms
  6. 11. a math sentence that uses an equal sign
  7. 12. a value that is less than zero
  8. 14. the result of a multiplication problem
  9. 16. the number that is multiplied by a variable