人气:412 ℃ 时间:2019-11-02 02:05:03
解答
方程两边都乘以(x-2)(x+3)得,
(x+1)(x+3)-x(x-2)=x+a,
整理得,5x=a-3,
解得x=
,
∵方程的解为正数,
∴
>0,且
-2≠0,
+3≠0,
解得a>3且a≠13.
即a>3且a≠13时,关于x的方程的解为正数.
故答案为:a>3且a≠13.
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