22/06/28 22:35:00.32 B0pgZxWt.net
前>>199
>>185
80X=36,000,000+10Y+8Z
10Y=7,200,000+X
80Z=29,400,000+8X+10Y
上2式辺々足すと79X=43,200,000+8Z
下2式辺々足すと80Z=36,600,000+9X
辺々足すと70X+72Z=79,800,000
辺々引くと79X-80Z=6,600,000+8Z-9X
88X-88Z=6,600,000
X-Z=75,000
35X+36Z=39,900,000
35X-35Z=2,250,000+375,000=2,625,000
71Z=37,275,000
Z=525,000
X=75,000+525,000=600,000
10Y=7,200,000+600,000=7,800,000
Y=780,000