解方程组:x/2+y/3=1 x*20%+y*30%=14*10%
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二元一次方程组 2(X+Y)-(X-Y)=3 (X+Y)-2(X-Y)=1 解方程组二元一次方程组 2(X+Y)-(X-Y)=3 (X+Y)-2(X-Y)=1
利用图像解方程组解方程组2x-y=1,x+2y=3
解方程组:解方程组:|X+Y|=1|X|+2|Y|=3
解方程组{ 3x-4y(x-y)=3 { 2x-3y=1
解方程组,(x+y)^2-3(x+y)=0和x-y=1
解方程组:x/2+y/3=1 x*20%+y*30%=14*10%
解方程组 y=2x x+y=3
解三元一次方程组x:y=2:1,2x-y=3z,x+y+z=20
解方程组解方程组{y=2x-7{x+y+z=1{3x-z=4
解方程组;x+y/2=x-y/3=6 4(x+y)-3(x-y)=-20
解方程组{(x-2)(y+3)=(x+1)(y-1) {(x+1)(y+1)=(x-1)(y+5)
解方程组:(x+3)(y-2)=(x-3)(y+10),(x+1)(y+3)=(x-2)(y+12)
2x+2y-x+y=3;x+y-2x+2y=1 方程组的解
数学书解方程组{2(x+y)-(x-y)=3,(x+y)-2(x-y)=1
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 3(x+y)-2(x-y)=9,5(x+y)+2(x-y)=-1
解方程组:{3(x+y)-2(x-y)=9,5(x+y)+2(x-y)=-1}