Question

Solve the open sentence. 

6 < 3b or 3b + 12 < 9

A. b < –1 or b < 3

B. b < 2 or b > –3

C. b < –1 or b > –6

D. b > 2 or b < –1

Answer 1

The awesner is D because i took the quiz ob k-12

Answer 2

6 < 3b
Divide both sides by 3,
6/3 < 3b/3
2 < b

3b + 12 < 9
Substitute 12 from both sides,
3b < -3
Divide both sides by 3,
b < -1

So, option D is your answer.

Hope this helps!