解方程组:3x+2y=4 2x-3y=8求X和Y你们X=28/13 Y=-16/13 代进2式去算算,好像不对
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解方程组 4(x+y)-(2x-y)=14 ,3(x+y)-2(2x-y)=8
解方程组 x-y/3-x+y/4=2 x-y/6-x+y/8=3
解方程组8/(x+y) +(x-y)/2=3,6/(x+y)-(x-y)/4=1
解方程组8y+5x=84y-3x=7 方程组 因式分解 4x^3-4x^2y-(x-y)
解方程组 y=2x x+y=3
解方程组3x+5(x+y)=2 3y-2(x+y)=4
解方程组{ 3x-4y(x-y)=3 { 2x-3y=1
解方程组x+y/3=x-y/4 2x+3y=11
解方程组,x+y/2=3x-2y=10+6x+y/4,
方程组x-2y=8,3x-4y=5,x=?,y=?
3(x+y)-2(x-y)=4; 3(x+y)+2x-2y=8 3(x+y)-2(x-y)=4; 3(x+y)+2x-2y=8 解方程组
解方程组:2(x +y)-3(x-y)=3;4(x+ y)+ 3(x-y)=15
解方程组;x+y/2=x-y/3=6 4(x+y)-3(x-y)=-20
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
解方程组⑴(x+y)/2-(x-y)/3=6,⑵3(x+y)=4(x-y)
解方程组4(x+y)-3(x-y)=14;(x+y)/2+(x+y)/3=6
解联立方程组 x/x+y=5/8 x/x+y+6=2/3