$\"\"$

The ordered pair is $\"\"$ and the equations of linear system are $\"\"$ .

To tell the ordered pair $\"\"$ is a solution of linear system, substitute 5 for x and 2 for y in each of the original equations.

Substitute 5 for x and 2 for y in the equation 1: $\"\"$ .

$\"\"$

$\"\"$ .

The above statement is true, so $\"\"$ is a solution of equation 1. $\"\"$

Substitute 5 for x and 2 for y in the equation 2: $\"\"$ .

$\"\"$

$\"\"$ .

The above statement is not true, so $\"\"$ is not a solution of equation 2.

Because $\"\"$ is not a solution of equation 2, it is not a solution of the linear system. $\"\"$

The ordered pair $\"\"$ is not a solution of the linear system.