解下面方程组,x+y/3+x-y/2=6 3(x+y)-2(x-y)=28,
解下面方程组,x+y/3+x-y/2=6 3(x+y)-2(x-y)=28,
解下列方程组{x=y-2/y-1{2x=(3/y+2)+1
用图像法解下列方程组:x+y=3 2x-3y=6
x+2y=3 x-y=6用加减法解下列方程组
用加减法解下列方程组2x-y=6 (x+2y)-3(x-y)=96
解下列方程组:x+2=3y,2x=3y.解下列方程组:3x+y=7,5x-2y=8.
1.解下面方程组(1)2x-4y=63x+2y=17(2)3x+5y=53x-4y=23(3)3x-y=05x-5y=-
解下列方程组{3x+7y=6,2x-7y=4;(2){y=3x,2x+3y=22.
用加减法解下列方程组x+y/3-x-y/2=6,3(x+y)+2(x-2y)=-12急
用代入法解下列方程组{x-y-6,2x+3y-8 {3(y-2)=x-17,2(x-1)-5y-8
解下列方程组2(x-y)/3-x-y/4=-1①6(x+y)-4(2x-y)=16②
用加减法解下列方程组:3(x+y)-4(x-y)=-18 , 2分之(x+y)+6分之(x-y)=2求解啊,急~