Carilah nilai y! 6[y-(4y-3)] ≤ 3(4y-3)

6 [y-(4y-3)] ≤ 3(4y-3)
6 [y - 4y + 3] ≤ 12y - 9
6 [-3y + 3] ≤ 12y - 9
-18y + 18 ≤ 12 y - 9
-18y - 12y ≤ -9 - 18
-30y ≤ - 27
y ≤ 27/30
y ≤ 9/10