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The system of equations are .
To write the augmented matrix,
Place the coefficients of the equations and the constant terms into matrix.
.
To make the first element in the first () row a 1, multiply the first row () by .
(The result is placed in row 1)
To make the first element in the second () row a 0, multiply the first row () by negative 2 and add the result to row 2 ().
(The result is placed in row 2)
To make the second element in the first () row a 0, multiply the second row () by and add the result to row 1().
(The result is placed in row 1)
The first row will give you the solution for .
The second row will give you the solution for .
The solution is .
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