解方程组,急6x+66-2y=0(1) 8y+4x=488 (2)
解三元一次方程组:x+y+z=6(1) x+2y+3z=14(2) 3x+4y-z=8(3) 急
解方程组:2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16
要求 解方程组:{(X-1)(Y+1)=(X+1)(Y+1){X(2+Y)-6=Y(X-4)
解方程组 x-y/3-x+y/4=2 x-y/6-x+y/8=3
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
解二元一次方程组{3(x+y)-(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
三元一次方程组!急已知x,y,z满足方程组x+y-z=6y+z-x=2z+x-y=0
解方程组X+Y/2=3X-2Y=10+6X+Y/4
1/2x-2y=-74,x-6y=-12解方程组,x/5-y/2=2,2x+3y=4解方程组
解方程组{ 3x-4y(x-y)=3 { 2x-3y=1