Question

Match the inequality with the solution:

2z + 6(z + 3) < 10

A) z > -1
B) z > 1
C) z < -1
D) z < 1

How to solve!?

Answer 1

2z + 6(z + 3) < 10
2z + 6z + 18 < 10
8z + 18 < 10
Can you subtract 18 from both sides and tell me what you get?

Answer 2

Continuing with my first reply,
If you subtract 18 from both sides you get:
8z < -8
Divide both sides by 8
z < -1

Answer 3

Thank you ranga for doing it step by step, I understand it now. :)

Answer 4

You are welcome.