解方程组2X+2Y=1,6X-6Y=1

要求 解方程组：｛(X-1)(Y+1)=(X+1)(Y+1)｛X(2+Y)-6=Y(X-4) 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 2(x+y)-3(x-y)=1 6(x+y)+7(x-y)=51 解方程组 解方程组﹛2(x+y)-3(x-y)=1 6(x+y)+7(x-y)=51 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6(x-y)-7(x+y)=21 2(x-y)-5(x+y)=-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3(x+y)-4(x-y)=4,x+y除以2+x-y除以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 解方程组{x/3+(y-x)/2=2 y-1/2=x-6 1/2x-2y=-74,x-6y=-12解方程组,x／5-y／2=2,2x+3y=4解方程组 x+6=y-x-8,2x+3y-1=y-x-8 解这个方程组x+6=y-x-8,2x+3y-1=y-x-8解这个方程组 已知方程组{2x+y=6,x-3y=1,不解方程组,求7y(x-3y)²-(3y-x)²的值.已知方程组{2x+y=6,{x-3y=1.不解方程组,求7y(x-3y)²-(3y-x)²的值.已知方程组{2x+y=6，{x-3y=1.不解方程组，求7y(x-3y)²-(3y-x)³ 2/x-y + 6/x+y = 11/10 分式方程组 4/x-y - 6/x+y =1/10