(1)y=2x-3 3x+2y=3 x=9/7 y=-3/7
(2)5x-2y=3 x+6y=11 x=5/4 y=13/8
(3)二分之x三分之y+=-3 7x=8y-4 x=-4 y=-3
(4)3x+2y=1 2x-y+2z=-4 x+2y-z=3 x=-1 y=2 z=0
y=2x-3 3x+2y=3 5x-2y=3 x+6y=11 二分之x三分之y+=-3 7x=8y-4 3x+2y=1 2x-y+2z=-4 x+2y-z=3
y=2x-3 3x+2y=3 5x-2y=3 x+6y=11 二分之x三分之y+=-3 7x=8y-4 3x+2y=1 2x-y+2z=-4 x+2y-z=3
[y=2x-3 3x+2y=3] [5x-2y=3 x+6y=11] [二分之x三分之y+=-3 7x=8y-4] [3x+2y=1 2x-y+2z=-4 x+2y-z=3]
[y=2x-3 3x+2y=3] [5x-2y=3 x+6y=11] [二分之x三分之y+=-3 7x=8y-4] [3x+2y=1 2x-y+2z=-4 x+2y-z=3]
数学人气：756 ℃时间：2019-08-19 01:38:59
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