解方程组{6/x+6/y=1/2 8/x-3/y=3/10
解方程组X+Y/2=3X-2Y=10+6X+Y/4
解方程组{6/x+6/y=1/2 8/x-3/y=3/10
x+6=y-x-8,2x+3y-1=y-x-8 解这个方程组
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
解方程组 x-y/3-x+y/4=2 x-y/6-x+y/8=3
解方程组 10(x-y)=3(x+y)+15 6(x+y)=4(2x-y)+16
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