Across
- 2. lines in a diagram that intersect or parallel
- 5. Two mathematical expressions that are equal
- 8. putting a number in place of a letter
- 9. A equation that has no value for the variable
- 10. get rid of a variable
Down
- 1. A letter that represents an unknown number
- 3. Solving a problem
- 4. A equation that has both sides equal
- 6. A equation that only one value for the variable
- 7. A way to do something