Assignment:
4x(1) + 5x(2) + 2x(3) = 11
2x(2) + 3x(3) - 4x(4) = -2
2x(1) + x(2) + 3x(4) = 12
x(1) + x(3) + x(4) = 9
Using a Gauss-Jordan Elimination process, x (1) =
Provide complete and step by step solution for the question and show calculations and use formulas.