The problem
Solve −x + 11 < 14.
Answer
x > −3
Worked solution
- Subtract 11 from both sides: −x < 3.
- Divide both sides by −1. It is negative, so the inequality sign flips: x > −3.
- Check with a number that should work, such as x = −2: -1·(−2) + 11 = 13, which is < 14.
How members answered
- 11tried
- 18%first try
- 4solved
Top wrong answers: <, 3 (2).