Answer:
x ≥ 2
Step-by-step explanation:
Given
3([tex]\frac{1}{2}[/tex] x + 3) ≥ 12 ← divide both sides by 3
[tex]\frac{1}{2}[/tex] x + 3 ≥ 4 ( subtract 3 from both sides )
[tex]\frac{1}{2}[/tex] x ≥ 1
Multiply both sides by 2 to clear the fraction
x ≥ 2