The ordered pair is and the equations of linear system are
.
To tell the ordered pair is a solution of linear system, substitute
for x and 1 for y in each of the original equations.
Substitute for x and 1 for y in the equation 1:
.
.
The above statement is true, so is a solution of equation 1.
Substitute for x and 1 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.