It's All Mathematics - Solving Equations

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Across
  1. 3. 4(5+x)=4*5+4*x is an example of this property
  2. 6. terms with the same variables (2 words, no space)
  3. 7. group of numbers, variables, and operations
  4. 10. a number
Down
  1. 1. e.g. x, y, z
  2. 2. operations that "undo" each other
  3. 3. when you figure out your solution, you _____ _____ it by plugging it back into the original equation
  4. 4. a fixed value
  5. 5. the order we evaluate expressions
  6. 8. 2 equivalent expressions
  7. 9. value that makes an equation true