So I am trying to solve this in matlab. How to return rref (A), leaving the constants?

0 clear variables close all clc 1 2 15 syms a b c A=[1 2 a; 2 3b; 33c]; rref (A) 9 10 12 Command Window New to MATLAB? See resources for Getting Started >>syms a b c A=[1 2 a; 2 3 b; 33c]; rref (A) ans =