x=y-2x=-3 就知道x=-3,y=-9啦
2x-3y+2z=2 就知道z=-19/2
方程组{x=y-2x=-3 2x-3y+2z=2 -3x+5y+2z=13 的解是
2个回答
相关问题
-
解方程组{2X-Y+Z=-3①,X+3Y-2Z=13②,3X-2Y-Z=2③
-
解方程组：-x+2y+3z=12 2x-2y+5z=13 3x+2y+z=10
-
解方程组 z=x+y 2x-3y+2z=5 x+2y-z=3
-
解三元一次方程组 X+Y-2Z=-3,2X-3Y+2Z=2,-3X+5Y+2Z=13
-
解方程组 x-y+z=5 2x+3y-2z=4 3x-y+2z=3
-
(x+2y+z)/3=(5x-y-3z)/5=(2x-3y+4z)/2=3解方程组.
-
解方程组 2x+3y-z=5 x-2y+2z=6 3x-y-3z=7
-
解方程组{3x+2y+z=6,2x+y+3z=1 ,x+3y+2z=5
-
求解方程组2x+3y=13,3x-5y=-9 x=y-z=4 2x-y=3z=-3 3x-y-2z=3
-
解方程组{x+2y+z=4 2x+y+2z=5 x+y+3z=5