Answer:
a.0<=x<-2
Explanation:
1 ≤ x < 4
-2≤ 2x - 4 < 4
Add 4 to each side
-2+4 ≤ 2x - 4+4 < 4+4
2 ≤ 2x < 8
Divide each side by 2
2/2 ≤ 2x/2 < 8/2
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