Kelvin's Octave Assignment

Solve Linear System of EQ's with Octave

This will solve and print solutions for the equations:

$1\times x1+2\times x2+3\times x3=55$

$4\times x1+5\times x2+6\times x3=20$

$7\times x1+8\times x2+9\times x3=42$

clear all
close all
A=[1,2,3
   4,5,6
   7,8,9];
b=[55
   20
   42];
result = A\b;
x1=result(1)
x2=result(2)
x3=result(3)