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1/2x > 9 - 3
1/2x > 6
x > 6.2
x > 12
2. 2/3x - 5 <= 7
2/3x <= 7 + 5
2/3x <= 12
x <= 12.3/2
x <= 18
3. 3/4x - 2 > -3
3/4x > -3 + 2
3/4x > -1
x > -1.4/3
x > -4/3
4. 1/6 - 1/2y < 7
- 1/2y < 7 - 1/6
- 1/2y < 41/6
y > 41/6 * -2
y > -41/3
5. 2/3y + 2 >= 1/4
2/3y >= 1/4 - 2
2/3y >= -3/4
y >= -3/4 * 3/2
y >= -9/8
6. 5/12 - y/6 < -2
- y/6 < -2 * 12/5
- y/6 < -24/5
-y < -24*6/5
-y < -28,8
y > 28,8
7 dst jawabannya aja cukup kan, caranya sama kok sama yang diatas
7. x < 10
8. x <= -16/3
9. x > 87/6
10. p >= 27/2
11. p > 2/18
12. p >= 57/30