Question

Need help on inequality.
10 less than or equal to - 2/3 (9+12b)

Answer 1

b less than or equal to -2.

Explanation:

- 2/3 (9+12b) ≥ 10

-6 - 8b ≥ 10

-8b ≥ 16

b ≤ -2. ( Note the inequality sign flips as we are dividing by a negative).