解二元一次方程 ①2x+3y=4,4x-4y=3 ,求x和y ②y+1/4=x+2/3 , 2x-3y=1,求x和y
解二元一次方程
①2x+3y=4,4x-4y=3,求x和y
②y+1/4=x+2/3,2x-3y=1,求x和y
速度
人气：265 ℃ 时间：2020-04-10 11:51:24
解答
(1)x=1.25 y=0.5
(2)y=-11/6 x=-2.25过程，谢谢
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