(1)+(2)+(3)
2(1/a+1/b+1/c)=10
1/a+1/b+1/c=5 (4)
(4)-(2),1/a=-1
(4)-(3),1/b=2
(4)-(1),1/c=4
所以
a=-1/2
b=1/2
c=1/4You are wrong!采纳吧好好回答就行。采纳吧别得瑟。😢😢🆒。采纳吧ˊ_>ˋ。求a，b，c的值啊。采纳吧