算了一会, 希望楼主采纳,谢谢!
若2x+5y+4z=6,3x+y-7=-4,则x+y-z的值为(注意是)3x+y-7=-4
3个回答
相关问题
-
若2x+5y+4z=6,3x+y-7z=-4,那么x+y-z的值是多少?
-
若2x+5y+4z=6,3x+y-7z=-4,那么x+y-z的值是多少?
-
2x+5y+4z=6,3x+y-7=-4,则x+y-z的值是多少
-
若2x+5y+4z=6,3x+y-7z=—4,求x+y-z
-
若2x+5y+4z=6,3x+y-7z=—4,求x+y+z
-
3X+7Y+Z=5,4X+8Y+2Z=3,则X+Y+Z的值为
-
2x+5y+4z=6,3x+y-7z=-4,x+y-z=?
-
若2x+5y-4z=0,3x+9y-7z=0,则x+y-z的值为
-
2x+5y+4z=6,3x+y-7z=-4,4x+3y+12z=-2 求x+y+z
-
若X:y=5:3,y:z=4:7,则X:z=?