解方程组:(2x+3y/4)+(2x-3y/3)=7 (2x+3y/3)+(2x-3y/2)=8
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解方程组:(2x+3y/4)+(2x-3y/3)=7 (2x+3y/3)+(2x-3y/2)=8
解方程组 x-y/3-x+y/4=2 x-y/6-x+y/8=3
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=?
解二元一次方程组:{5(x+y)+3(x-y)=2{7(x+y)-3(x-y)=-6
解方程组:2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16
3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2 解方程组
解方程组 {(x+y)/2+(x-y)/3=6 5(x+y)-2(x-y)=4
解方程组 X+Y/2+X-Y/3=6 4[X+Y]-5[X-Y]=2
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