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Bab Aljabar
1] 5 (y - 4) > 7y - 11
5y - 20 > 7y - 11
5y - 7y > 20 - 11
-2y > 9
y < -9/2
2] (1/5) y + 15 < -25
◎◎ dikali 5 ◎◎
y + 75 < -125
y < -125 - 75
y < -200
3] (2/3) y - (1/6) >= (3/4) y
◎◎ dikali 12 ◎◎
8y - 2 >= 9y
8y - 9y >= 2
-y >= 2
y <= -2