2×° + (3× – 20)°=180°bagaimana cara ngitungnyatolong bantu ya By Admin ReiPosted on October 29, 2022 2×° + (3× – 20)°=180°bagaimana cara ngitungnyatolong bantu ya 2x+3x-20 = 180 5x-20 = 180 5x = 200 x = 40° Semoga membantu.