解方程组{6x=30y 6x-2y=21

解方程组6(x-y)-7(x+y)=21 2(x-y)-5(x+y)=-1 解方程组{6x=30y 6x-2y=21 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, x+y+xy=5 (x^2)y+x(y^2)=6 解方程组 解方程组;x+y/2=x-y/3=6 4(x+y)-3(x-y)=-20 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/4=-1 6(x-y)-4(2x-y)=16 解二元一次方程组{x+y/2+x-y/3=6,4(x+y)-2=5(x-y) 解方程组2分之x+y+3分之x-y=6 4(x+y)-5(x-y)=2 解方程组 {(x+y)/2+(x-y)/3=6 5(x+y)-2(x-y)=4 3/x+y+2/x-y=6,3（x+y)-2(x-y)=28解这个方程组 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=1kkkkkkkk 3(x+y)—4(x-y)=4,(x+y/2)+(x-y/6)=1.解方程组