解方程组:(1) 2x-4y=6 x+2y=-2(用代入消元法) (2) 3分之x+1=y 2(x+1)-y=6 (用代入消元法)过程+为什么这样做
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解方程组2(x-y)/3-x+y/4=-1 6(x-y)-4(2x-y)=16
解方程组:2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16
要求 解方程组:{(X-1)(Y+1)=(X+1)(Y+1){X(2+Y)-6=Y(X-4)
解二元一次方程组3(x+y)-4(x-y)=4 x+y/2+x-y/6=1
解方程组3(x+y)-4(x-y)=4和(x+y)/2+(x-y)/6=1kkkkkkkk
解方程组3(x+y)-4(x-y)=4,x+y除以2+x-y除以6=1
解二元一次方程组{3(x+y)-(x-y)=4,x+y/2+x-y/6=1
解方程组{2(x-y)/3 - x+y/4=-1 6(x+y)-41(x-y)=12
解方程组8/(x+y) +(x-y)/2=3,6/(x+y)-(x-y)/4=1
解方程组 2x+y=(4x-y-1)/2=(10+6x+2y)/4
解方程组 2x+y=(4x-y-1)/2=(10+6x+2y)/4
解方程组:4(x+1)=3(y+3) x-2y=7y-6x/3
解二元一次方程组:3(x+y)-4(x-y)=4,x+y/2+x-y/6+1x+y/2+x-y/6+1=1
1/2x-2y=-74,x-6y=-12解方程组,x/5-y/2=2,2x+3y=4解方程组
一道很简单的方程组3(x+y)-4(x-y)=4(x+y)/2+(x-y)/6=1是方程组啊.
解方程组,x+y/2=3x-2y=10+6x+y/4,
解方程组{ 3x-4y(x-y)=3 { 2x-3y=1
利用函数图象解方程组:(1){3x+2y:2x-y=1(2){x+2y=4:2x-y=6