Answer:
x < 3

Explanation:
I cannot see a number line, but the solution can be found by:
5 + 8x < 3(2x+4) Distribute the 3
5 + 8x < 6x + 12 Subtract 6x from both sides
5 + 2x < 12 Subtract 5 from both sides
2x < 7 Divide both sides by 2
x <

or
x < 3
This means that all of the numbers less than 3 1/2 are answers.