x+y=6 ,3x-3y=6 解方程组
解方程组(三分之x+y)+y=6,3(x+y)-y=24
解方程组:{x+|3x-y|+3y=15 2x+y=6
解方程组 x=3y-6 0.8(x+y)=x+y-13.6
解方程组X+Y/2=3X-2Y=10+6X+Y/4
用加减法解方程组:{(x+y)/6+(x-y)/10=3 (x+y)/6+(y-x)/10=-1
解方程组x+y/6+x-y/10=3,x+y/6+y-x/10=-1
求x+y/3+x-y/2=6 3(x+y)-2(x-y)=28方程组的解
解二元一次方程组:{5(x+y)+3(x-y)=2{7(x+y)-3(x-y)=-6
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
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