Answer: x < 5.
- A x < 5
- B x > 5
- C x < 10
- D x > 10
Correct answer: A. x < 5
Explanation: Dividing both sides by 2 gives x < 5.
One-variable inequalities use open (excluded) or closed (included) circles on a number line; two-variable inequalities use a dashed (strict) or solid (non-strict) boundary line, with the solution being the entire shaded half-plane on one side of it.
Concept context
Solving linear inequalities in one and two variables algebraically and graphically, and representing solutions on a number line or as a region in a plane.