Ok I need some help on how I can approach a problem like this.(adsbygoogle = window.adsbygoogle || []).push({});

Say that A B and C are matircies and I know the values of each of them.

And let x and y be constants (ie: 7 or 2 or somthing like that)

What I want to know is can you write

A = xB + yC

How would you check to see if there are an x and y that can make that equation true and if there is how can you find it. I think if B and C are in the span of A then yes there is an x and y but that doest tell me how to find them.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Writing a matrix as sum of a constant * matrix

**Physics Forums | Science Articles, Homework Help, Discussion**