求指导本题解题过程，谢谢您！2.对非齐次线性方程组 ) lambda (x)_(1)+(x)_(2)+(x)_(3)=lambda -3 (x)_(1)+lambda (x)_(2)+(x)_(3)=-2, (x)_(1)+(x)_(2)+lambda (x)_(3)=-2, . 讨论λ取何值时,方程组有(1)-|||-唯一解;(2)无解;(3)有无穷多个解,并求出通解.

求指导本题解题过程，谢谢您！