Question

Select all possible values for x if −3x < 15.

Select one or more:
A. -11
B. -7
C. -5
D. 2
E. 9

Answer 1

D. 2

E. 9

Explanation:

`- 3x < 15 \\ \\ x > (15)/( - 3) \\ \\ x > - 5 \\ \\`

Since x > - 5,

Therefore possible values of x would be 2 and 9 out of the given ones.

Answer 2

Explanation:

When dividing or multiplying by a negative number, remember to flip the inequality sign.

-3x < 15

x > -5 (divide -3 on both sides, flip the inequality sign)

The correct options are 2 and 9. (D and E)