解方程组2x-4x=6 3x+2y=17

解方程组X+Y/2=3X-2Y=10+6X+Y/4 解方程组：2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16 解方程组 {(x+y)/2+(x-y)/3=6 5(x+y)-2(x-y)=4 解方程组 X+Y/2+X-Y/3=6 4[X+Y]-5[X-Y]=2 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{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 解方程组 x-y/3-x+y/4=2 x-y/6-x+y/8=3 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：x+y/2+x-y/3=6 4(x+y)-5(x-y)=12 解方程组 10（x-y)=3(x+y)+15 6(x+y)=4(2x-y)+16 解二元一次方程组：3(x+y)-4(x-y)=4,x+y/2+x-y/6+1