✨ 最佳解答 ✨ ecastudy 約4年以前 penyelesaian : (x-y) - (2x-y) = 5 - 4 x-y-2x+y = 1 x-2x = 1 -x = 1 x = -1 mencari nilai Y : x-y = 5 -1-y = 5 -y = 5+1 -y = 6 y = -6 aljabar 留言
