Penyelesaian |7y – 12| – 3 > 6
|7y – 12| – 3 > 6
7y – 12 – 3 > 6
7y – 15 > 6
7y > 6 + 15
7y > 21
y > 3
7y – 12 – 3 < -6
7y – 15 < -6
7y < -6 + 15
7y < 9
y < 9/7
|7y – 12| > 9
7y – 12 > 9
7y > 21
y > 3
atau
7y – 12 > -9
7y > 3
y > 3/7
hp. (3,3/7)