{4x^2-9y^2=12 2x-3y=3 解方程组
解方程组:x+y/2+x-y/3=6 4(x+y)-5(x-y)=12
解方程组{ 3x-4y(x-y)=3 { 2x-3y=1
解方程组X+Y/2=3X-2Y=10+6X+Y/4
解方程组x+y/3=x-y/4 2x+3y=11
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:(x+3)(y-2)=(x-3)(y+10),(x+1)(y+3)=(x-2)(y+12)
解方程组 2x+y(y-2x)=9 (x+y)(x+y-3)=10
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
解方程组 x-y/3-x+y/4=2 x-y/6-x+y/8=3