The file Postlab2Data.txt contains a 3 x 4) array that represents the augmented matrix for the following system of linear equations:

10x₁ + 2x₂ - x₃ = 27
-3x₁ - 6x₂ + 2x₃ = -61.5
x₁ + x₂ + 5x₃ = -21.5

Write a MATLAB script that performs the following:
Loads the data from Postlab2Data.txt into an array called data