Question

Using MATLAB

Write a MATLA code to solve the following system of linear equations: -x + y + 4z = -2 20y + 3x - 1z = 3 3z + 2y + 6z - 3 = 0

Answer 1

Let's write the equations in simple form:

-x + y + 4z = -2

3x + 20y -z = 3

0x + 2y + 9z = 3

Following is the required code to solve the above problem.

% Matrix A contains the coefficients of the variables

A = [
-1 1 4
3 20 -1
0 2 9
]
  

% Matrix B contains the values at the Right Hand Side in the three equations
B = [ -2 ; 3 ; 3 ]

% compute the value for x, y, and z

solution = inv(A) * B

Here is a screenshot of the output for above code:

Note: I was confused if the equations were correctly written. This is how they were in the question.

If you feel that the equations that i have written after simplifying doesn't match yours, please do COMMENT.

Hope this code meets all your requirements...

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