The solution set of $6≤ -3(2x-4) < 12, x∈R$ is:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (0, 1]
Given inequality: $6 \le -3(2x - 4) < 12$
Divide all parts by -3 (reverse inequalities):
$\frac{6}{-3} \ge 2x - 4 > \frac{12}{-3} \Rightarrow -2 \ge 2x - 4 > -4$
Add 4 to all parts:
$-2 + 4 \ge 2x > -4 + 4 \Rightarrow 2 \ge 2x > 0$
Divide by 2:
$1 \ge x > 0 \Rightarrow x \in (0, 1]$