Describe the set of all b for which Ax = b does have a solution. 0 = b3 + b2 +b1 (Type an expression using b,, b,, and b, as the variables and 1 as the coefficient of b,.) b1 1 -2 - 1 Let A = - 3 3 0 and b= b, Show that the equation Ax = b does not have a solution for all possible b, and describe the set of all b for which Ax = b does have a solution. 2 - 1 b3