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3 < 2x-7
3 + 7 < 2x
10 < 2x
x < 10/2
x < 5
2.
2x-7 ≤ 5
2x ≤ 5 + 7
2x ≤ 12
x ≤ 12/2
x ≤ 6
Jadi, 5 > x ≤ 6