我从一本英文书看到一条数学题,
inheritance
sharesonofxinheritanceequally
1stson
x=1+1/7(E-1)
2ndson
x=2+1/7(E-2-x)
equaltwoshare
1+1/7(E-1)=2+1/7(E-2-x)
1+E/7-1/7=2+E/7-2/7-x/7
x/7=6/7
x=6
6=1+1/7(E-1)
E=36