Consider the linear system Ax=b where A is the matrix

Consider the linear system Ax=b where A is the matrix
` [[-4,4,36],[-5,1,29],[1,-1,-9]]`
And b is an arbitrary vector
` [[b1],[b2],[b3]]`
Answer:
(Part 1) Is this system solvable for any
(Part 2) The system is solvable if vector b satisfies the equation
（）b1+（）b2+（）b3=0