Please solve with a proper solution

Is it possible that the region in E" given by Ax=b, x27, is bounded, whereas the region in En+m given by Ax+xa = b, x,x, 27, is unbounded? What are the implications of your answer on using the Big-M method as a solution procedure? Is it possible that the region in E" given by Ax=b, x27, is bounded, whereas the region in En+m given by Ax+xa = b, x,x, 27, is unbounded? What are the implications of your answer on using the Big-M method as a solution procedure