simequation(a,b)
a must be a n x n matrix of coefficients and
b must be a n x 1 matrix of constants

Example usage to solve this system of 2 simultaneous linear equations in 2 unknowns:

2x + 4x = 3 and
3x + 5x = 6

%coefficient matrix..
>> cm = [ 2 , 4; 3, 5]
cm =
2 4
3 5
>>

%..calling the function to solve the simultaneous linear equations...pass the constants as a column vector.
>> simequation(cm,[3;6])

ans =

4.5000
-1.5000

% check answer
>> cm * ans

ans =

3.0000
6.0000

>>