Verified answer

3x-17≥-8

<=> adding +8 to each part --> (3x-17) +8 ≥-8+8

<=> 3x -17+8 ≥0

<=> 3x-9≥0

<=> adding +9 to each part --> 3x ≥ 9

<=> dividing each part with 3 --> x≥3