# matrix equation proof

• May 6th 2008, 07:34 AM
Dr Zoidburg
matrix equation proof
BA = CA + C
solve the equation for B, stating any assumption required.

not a clue where to start. Missed that lecture! (Doh)
• May 6th 2008, 07:59 AM
Opalg
Quote:

Originally Posted by Dr Zoidburg
BA = CA + C
solve the equation for B, stating any assumption required.

not a clue where to start. Missed that lecture! (Doh)

If you're allowed to make the assumption that A is invertible, then just multiply both sides of the given equation on the right by the inverse of A, to get $B = C + CA^{-1}$. Otherwise, the problem is a whole lot harder, and the solution, if it exists, will not be unique.