100x+10y+z=100z+10y+x+99化简得

问题描述:

100x+10y+z=100z+10y+x+99化简得

99x-99z=99
x-z=1

z=x+1

x-z-1=0

x-z=1

移项得99X=99Z+99 所以X=Z+1

x=1+z