解方程组:2(x +y)-3(x-y)=3;4(x+ y)+ 3(x-y)=15
解方程组 10(x-y)=3(x+y)+15 6(x+y)=4(2x-y)+16
解方程组:{x+|3x-y|+3y=15 2x+y=6
解方程组{ 3x-4y(x-y)=3 { 2x-3y=1
解方程组x+y/3=x-y/4 2x+3y=11
解方程组X+Y/2=3X-2Y=10+6X+Y/4
解方程组:2(x+y)-3(x-y)=34(x+y)+3x=15+3y.
解方程组 x-y/3-x+y/4=2 x-y/6-x+y/8=3
解方程组:2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16
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
3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2 解方程组