y=2x

x+y=12

- All categories
- Pre-Algebra Answers 12,307
- Algebra 1 Answers 25,236
- Algebra 2 Answers 10,430
- Geometry Answers 5,157
- Trigonometry Answers 2,637
- Calculus Answers 5,998
- Statistics Answers 3,016
- Word Problem Answers 10,085
- Other Math Topics 6,622

81,488 questions

85,667 answers

2,175 comments

69,149 users