Answer:
X >= 0
X <= 4
Explanation:
3 |1/2x-1| + 10 >= 7
3 | 1/2x - 1| >= 7 - 10
| 1/2x - 1 | >= -3/3
| 1/2x - 1 | > = -1
1/2x - 1 >= - 1 or 1/2x - 1 <= 1
1/2x >= 0
x >= 0
1/2x -1 <= 1
1/2x <= 2
x <= 2/(1/2)
x <= 4
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