解方程组 (x-1)⼀3-(y+2)⼀4=0 (x-3)⼀4-(y-3)⼀3=1⼀12

2024-12-01 22:45:46
推荐回答(1个)
回答1:

解: (x-1)/3-(y+2)/4=0 ①
(x-3)/4-(y-3)/3=1/12 ②
整理得
4x-3y=10 ③
3x-4y=-2 ④
③*3-④*4得7y=38
y=38/7
③*4-④*3得7x=46
x=46/7
解得x=46/7, y=38/7 .