Question

Solve 2 ≤ 2x + 4 < 10 for x.

Answer 1

Answer: -1 ≤ x < 3

Explanation:

2 ≤ 2x + 4 < 10

Subtract 4 from all sides

2-4 ≤ 2x + 4-4 < 10-4

-2 ≤ 2x < 6

Divide all sides by 2

-2/2 ≤ 2x/2 < 6/2

-1 ≤ x < 3

Answer 2

−1≤x<3.

also correct: [−1,3)

Explanation: