(x-c-b)/a+(x-a-c)/b+(x-a-b)/c=3,1/a+1/b+1/c不等于零,求x-a-b-c

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(x-c-b)/a+(x-a-c)/b+(x-a-b)/c=3,1/a+1/b+1/c不等于零,求x-a-b-c(x-c-b)/a+(x-a-c)/b+(x-a-b)/c=3,1/a+1/b+1/c不

(x-c-b)/a+(x-a-c)/b+(x-a-b)/c=3,1/a+1/b+1/c不等于零,求x-a-b-c
(x-c-b)/a+(x-a-c)/b+(x-a-b)/c=3,1/a+1/b+1/c不等于零,求x-a-b-c

(x-c-b)/a+(x-a-c)/b+(x-a-b)/c=3,1/a+1/b+1/c不等于零,求x-a-b-c
(x-c-b)/a+(x-a-c)/b+(x-a-b)/c-3=0
把-3拆成-1-1-1
[(x-c-b)/a-1]+[(x-a-c)/b-1]+[(x-a-b)/c-1]=0
(x-a-c-b)/a+(x-a-c-b)/b+(x-a-c-b)/c=0
(x-a-c-b)(1/a+1/b+1/c)=0
1/a+1/b+1/c不等于零
所以x-a-b-c=0