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( 6y - 12 ) - ( 12y +20 ) ≤ 2y - 16
( 6y - 12y ) - ( 20 + 12 ) ≤ 2y - 16
-6y - 32 ≤ 2y - 16
-6y - 2y ≤ -16 + 32
-8y ≤ 16
y ≤ 16 : -8
y ≥ -2 ( tanda dibalik ≤ menjadi ≥ )
HP = { -2, -1, 0, 1, ... }
Tolong tandai sebagai jawaban terbaik ya ?