(1), when a-1>; 0, that is, a> is at 1, and the solution set of inequality (a- 1) x < a+5 is x < a+5/a- 1, because x

(a- 1) x < a+5 holds, so a+5/a- 1≥2, that is, a≤7,

Therefore, the value range of a is 1

(2) when A- 1

Therefore, not all x < 2 can make x & gtA+5/a- 1 hold, so the inequality (A- 1) x < A+5 may not hold.

So you should choose a.