方程组:3X+4Y+10/X+Y+2=3.5
解方程组X+Y/2=3X-2Y=10+6X+Y/4
已知方程组{3x+4y=10 4x+3y=-2,不解方程组则x+y=
解方程组 10(x-y)=3(x+y)+15 6(x+y)=4(2x-y)+16
方程组:3X+4Y+10/X+Y+2=3.5
解方程组:(0.2x+0.1y)/2- (4x-y)/10=(x-y)/5+ (3x+0.5y)/30 (3x+2y-1
解方程组{ 3x-4y(x-y)=3 { 2x-3y=1
方程组x-2y=8,3x-4y=5,x=?,y=?
解方程组x+y/3=x-y/4 2x+3y=11
解方程组2分之X+y=3x-2y=4分之10+6x+y
解三元一次方程组{2x+y=10,x-y+z=4,3x-y-z=0
解方程组:(x+3)(y-2)=(x-3)(y+10),(x+1)(y+3)=(x-2)(y+12)
解方程组:2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16