Across
- 5. only one value for the variable that makes the equation true.
- 9. When the answer to a system of equations is exactly the same
- 10. compares two values
Down
- 1. Distance of a number from zero
- 2. A mathematical sentence with an equal sign
- 3. When there is no answer to a system of equations or inequalities
- 4. one operation undoes the action of the other
- 6. equations with one or more variable
- 7. an alphabet or term that represents an unknown number
- 8. Symbols such as parentheses ( ), brackets [ ], and braces { } that separate a part of an expression.