解方程组 4/x/-3/y/=6,/x/+2/y/=7
解方程组X+Y/2=3X-2Y=10+6X+Y/4
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
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
3(x+y)—4(x-y)=4,(x+y/2)+(x-y/6)=1.解方程组
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=1
解方程组 x-y/3-x+y/4=2 x-y/6-x+y/8=3
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
解二元一次方程组{3(x+y)-(x-y)=4,x+y/2+x-y/6=1