Question

Find the set of points which satisfies the following inequal-

ity. Express your solution in interval notation.

3 ≤ 2x + 7 < 13

Answer 1

[ - 2, 3 )

Explanation:

given the inequality

3 ≤ 2x + 7 < 13 ( subtract 7 from each interval )

- 4 ≤ 2x < 6 ( divide each interval by 2 )

- 2 ≤ x < 3

solution is [ - 2, 3 )