Hasil dari -3 <4x-9 <11 By Admin ReiPosted on October 28, 2022 Hasil dari -3 <4x-9 <11 -3 < 4x – 9 < 11-3 + 9 < 4x – 9 + 9 < 11 + 96 < 4x < 206/4 < x < 20/46/4 < x < 5