求x+y/3+x-y/2=6 3(x+y)-2(x-y)=28方程组的解
求x+y/3+x-y/2=6 3(x+y)-2(x-y)=28方程组的解
3/x+y+2/x-y=6,3(x+y)-2(x-y)=28解这个方程组
已知方程组{2x+y=6,x-3y=1,不解方程组,求7y(x-3y)²-(3y-x)²的值.
已知x,y的值满足方程组x+2y=3,x-y=-2,求x/(x-y)²+x²-y²/(x+
如果方程组3x+y=k x+3y=2的解x,y
解方程组:{x+|3x-y|+3y=15 2x+y=6
解方程组X+Y/2=3X-2Y=10+6X+Y/4
解下面方程组,x+y/3+x-y/2=6 3(x+y)-2(x-y)=28,
不解方程组{2x+y=6,x-3y=1},求7y(x-3y)²-2(3y-x)的3次方的值
解二元一次方程组:{5(x+y)+3(x-y)=2{7(x+y)-3(x-y)=-6
解方程组 x-y/3-x+y/4=2 x-y/6-x+y/8=3
解方程组 {(x+y)/2+(x-y)/3=6 5(x+y)-2(x-y)=4