Solving Equations Challenge

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Across
  1. 2. to remove parenthesis by applying the Distributive property
  2. 3. undoes addition
  3. 4. undoes division
  4. 8. made up of numbers, variables and symbols
  5. 9. the rearrange an equation so that a variable is alone on one side of the equal sign
  6. 10. a mathematical statement with two expressions separated by an equal sign
  7. 13. the coefficient of x in the expression -x + 7
  8. 15. number of solutions to an equation that simplifies to an always true equation
  9. 16. to substitute a solution into the original equation to verify accuracy
Down
  1. 1. used to undo terms when solving equations using Same Thing To Both Sides Method
  2. 5. number of solutions to an equation that simplifies to an always false equation
  3. 6. the result of multiplying a negative number by a negative number
  4. 7. undoes multiplication
  5. 11. undoes subtraction
  6. 12. terms that have the same variable raised to the same power
  7. 14. the coefficient of x in the expressions 5 + x