x+6=y-x-8,2x+3y-1=y-x-8 解这个方程组
x+6=y-x-8,2x+3y-1=y-x-8 解这个方程组
解方程组 x-y/3-x+y/4=2 x-y/6-x+y/8=3
3/x+y+2/x-y=6,3(x+y)-2(x-y)=28解这个方程组
y/3-x+1/6=3,2(x-y/2)=3(x+y/18) 解这个方程组
解方程组:根号(x+1/y)+根号(x+y-3)=3 2x+y+1/y=8
解方程组:2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16
2(x+y)-3(x-y)=1 6(x+y)+7(x-y)=51 解方程组
解二元一次方程组{3(x+y)-(x-y)=4,x+y/2+x-y/6=1
解方程组﹛2(x+y)-3(x-y)=1 6(x+y)+7(x-y)=51
解二元一次方程组{3(x+y)-4(x-y)=4,x+y/2+x-y/6=1
解方程组3(x+y)-4(x-y)=4和(x+y)/2+(x-y)/6=1
解二元一次方程组:3(x+y)-4(x-y)=4,x+y/2+x-y/6+1