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Table of Content
The augmented matrix calculator solve an augmented matrix of linear equations by using Gauss Jordan elimination method.
An augmented matrix formed by merging the column of two matrices to form a new matrix.
The augmented matrix is one method to solve the system of linear equations. The number of rows in an augmented matrix is always equal to the number of variables in the linear equation.
Let’s understand the concept of an augmented matrix with the help of three linear equations!
a1x + b1y + c1z = d1
a2x + b2y + c2z = d2
a3x + b3y + c3z = d3
Matrix Coefficients – A=$$ \begin{bmatrix}a_1&b_1&c_1\\a_2&b_2&c_2\\a_3&b_3&c_3\end{bmatrix}$$
Matrix of Constant terms – B = $$\begin{bmatrix}d_1\\d_2\\d_3\end{bmatrix}$$
Matrix of Variables – C = $$ \begin{bmatrix}x\\y\\z\end{bmatrix}$$
Here we are solving the augmented matrix in the example below.
Let us suppose we have the following system of linear equations:
                          3 x + 5y = 10
                          7x + 9 y = 15
For instant calculations, you may better use the gauss jordan calculator 2×3. but we will also consider the manual calculations here:
 In the example below, All the steps are explained in detail.
 $$ \begin{bmatrix}3 & 5 & 10 \\ 7 & 9 & 15 \\\end{bmatrix} $$ Â
Divide row zeroth row by 3: R0 = R0/3
$$ \left[ \begin{array}{cc|c}1& \frac{5}{3}&\frac{10}{3}\\ 7&9&15 \\ \end{array}\right]$$Â
Multiply the zeroth by 7 and subtract the row first by the zeroth and multiply the zeroth by 7Â R0: R1 = R1 – 7R0
$$ \left[ \begin{array}{cc|c}1&\frac{5}{3}&\frac{10}{3}\\0& \frac{-8}{3}& \frac{-25}{3}\\ \end{array} \right]$$Â
Multiply first row 1 by 3/-8: R1 = 3/-8 R1
$$ \left[ \begin{array}{cc|c}1& \frac{5}{3} & \frac{10}{3} \\0&1&\frac{25}{8} \\ \end{array}\right] $$Â
Multiplied first row by 5/3 and subtract it from zeroth rowR1: R0 = R0 – 5/3R1
$$ \left[\begin{array}{cc|c}1&0& \frac{-15}{8}\\0&1&\frac{25}{8}\\\end{array}\right] $$
The reduced echelon form of the matrix is also considered augmented matrix.Â
Augmented matrix possesses the following properties:
Our augmented matrix solver requires the following inputs to generate an accurate result.
Input:
Output: