由x+y/3=x+z/2得:
y/3=z/2
z=2y/3 (1)
由x+z/2=y+z/2得:
x=y (2)
把(1)和(2)代入x+y+z=28得:
y+y+2y/3=28
8y/3=28
y=21/2
把y=21/2代入(1)和(2)可得方程组的解为:
x=21/2
y=21/2
z=7
由x+y/3=x+z/2得:
y/3=z/2
z=2y/3 (1)
由x+z/2=y+z/2得:
x=y (2)
把(1)和(2)代入x+y+z=28得:
y+y+2y/3=28
8y/3=28
y=21/2
把y=21/2代入(1)和(2)可得方程组的解为:
x=21/2
y=21/2
z=7