Across
- 5. All points on both lines intersect.
- 7. Operations that undo addition, subtract, multiplication or division
- 8. Parallel lines that never touch or cross.
Down
- 1. Replacing a letter with a number or equation
- 2. To multiply a number or sign to everything inside the parentheses.
- 3. A single point where two lines intersect.
- 4. Two or more equations.
- 6. A pair of points that makes the both equations true.