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## Homework Statement

Let A be an n*n matrix and let B be a real number, Nothing which properties of matrix multiplication you use, show that the set W= {x member of R^n | Ax=Bx} is a subspace of R^n, where x in the equation Ax=bx is represented by a column vector instead of an n-tuple with commas.

## Homework Equations

## The Attempt at a Solution

Can i have some hint plz ..i have no idea what to do ...