解方程组:{2x-3y+1=0,3x-2y-1=0}
解方程组 y²-3x²+x+1=0 2x-y=1
解方程组 2x-y-1=0 x²-4y²+x+3y-1=0
解方程组(1)2x+3y=12 ,2x+y=0 (2)x+y=7,3(x+y)-7y=7
解方程组{ 3x-4y(x-y)=3 { 2x-3y=1
解方程组:{2x-3y+1=0,3x-2y-1=0}
解方程组,3X一1/2y=0 2X十y=2
解方程组 x-2y=0(1)3x+2y=8(2)
解方程组:解方程组:|X+Y|=1|X|+2|Y|=3
解方程组{(x-2)(y+3)=(x+1)(y-1) {(x+1)(y+1)=(x-1)(y+5)
解方程组:(x+3)(y-2)=(x-3)(y+10),(x+1)(y+3)=(x-2)(y+12)
数学书解方程组{2(x+y)-(x-y)=3,(x+y)-2(x-y)=1
解方程组:2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16