解方程组x+2y=59,2x+y=36
解方程组(x+y)(x-2y)=-5 (x-y)(x+2y)=7
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=3X-2Y=10+6X+Y/4
如果方程组3x+y=k x+3y=2的解x,y
用代入法解方程组:y=3(x-y),x=2(x-y)
解方程组{ 3x-4y(x-y)=3 { 2x-3y=1
解方程组:{x+|3x-y|+3y=15 2x+y=6
解方程组x+y/3=x-y/4 2x+3y=11
解方程组:解方程组:|X+Y|=1|X|+2|Y|=3
解方程组x^2-y^2=x+y 4x^2-y^2+2x-y=0过程
数学书解方程组{2(x+y)-(x-y)=3,(x+y)-2(x-y)=1
求x+y/3+x-y/2=6 3(x+y)-2(x-y)=28方程组的解