Explain what the variable represents in an addition or subtraction expression.

- All categories
- Pre-Algebra Answers (11,958)
- Algebra 1 Answers (24,263)
- Algebra 2 Answers (10,064)
- Geometry Answers (4,863)
- Trigonometry Answers (2,487)
- Calculus Answers (5,567)
- Statistics Answers (2,831)
- Word Problem Answers (9,104)
- Other Math Topics (5,353)

...