方程组 2x+3y=4 4x-9y=38
方程组x-2y=8,3x-4y=5,x=?,y=?
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
y-3x=2,y-5x=4,y-7x=6,y-9x=8,y-11x=0方程组,
已知方程组{3x+4y=10 4x+3y=-2,不解方程组则x+y=
解方程组:2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16
解方程组{4/x+y+6/x-y=3, 9/x-y-1/x+y=1
解方程组:{4/x+y+6/x-y=3 9/x-y-1/x+y=1}
3(x+y)—4(x-y)=4,(x+y/2)+(x-y/6)=1.解方程组
一道二元一次方程组!3(x+y)-4(x-y)=4,(x+y)/2+(x-y)/6=1
解二元一次方程组{3(x+y)-4(x-y)=4,x+y/2+x-y/6=1