If 6x + 4 ≥ 7 + 3x ≥ 5x – 10; find x.
Solution
6x + 4 ≥ 7 + 3x and 7 + 3x ≥ 5x - 10
6x – 3x ≤ 7 - 4 and 7
+10 ≤ 5x - 3x
3x ≤ 3 and 17 ≤ 2x
3x ≤ 3 and 17
≤ 2x
3 3
2 2
x ≤ 1 and 17/2 ≤ x
x ≤ 1 and x ≥ 17/2
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