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2x > 4 - 3
2x > 1
x > 1/2
2. 5a - 1 >= 6
5a >= 6 + 1
5a >= 7
a >= 7/5 -> 1 2/7
3. 5x - 7 > 9x - 23
5x - 9x > -23 + 7
-4x > -16
x < 4
4. 10a - 2 < 2a + 14
10a - 2a < 14 + 2
8a < 16
a < 2
5. 7y <= 2y + 10
7y - 5y <= 10
2y <= 10
y <= 5