解方程组 (x+y)/6 -(x-y)/4=0 (2x-y)/3+(x-2y)/2=9 x= y=咦题目格式……(x+y)/6 -(x-y)/4=0 (2x-y)/3+(x-2y)/2=9 x= y=

解方程组（三分之x+y）+y=6,3(x+y)-y=24 解方程组 x+y+z=-7 x-y=12 x+y-z=6 解方程组：｛4x+5(x-y)=30,4y-3(x-y)=6 解方程组,x+y/2=3x-2y=10+6x+y/4, 解方程组 x=3y-6 0.8(x+y)=x+y-13.6 x+y+xy=5 (x^2)y+x(y^2)=6 解方程组 用加减法解方程组:{(x+y)/6+(x-y)/10=3 (x+y)/6+(y-x)/10=-1 2(x+y)-3(x-y)=1 6(x+y)+7(x-y)=51 解方程组 解方程组 X+Y/2+X-Y/3=6 4[X+Y]-5[X-Y]=2 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2(x-y)/3-x+y/4=-1 6(x-y)-4(2x-y)=16 解方程组3(x+y)-4(x-y)=4和(x+y)/2+(x-y)/6=1kkkkkkkk 解方程组6(x-y)-7(x+y)=21 2(x-y)-5(x+y)=-1 3(x+y)—4(x-y)=4,(x+y/2)+(x-y/6)=1.解方程组 解二元一次方程组{x+y/2+x-y/3=6,4(x+y)-2=5(x-y) 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3(x+y)-4(x-y)=4,x+y除以2+x-y除以6=1