What is the solution of the system of linear equations graphed below ? PLEASE HELP

A linear equation is the equation of a straight line. The solution to the system of linear equations is infinitely many solutions.
There are two straight lines on the attached graph. The lines are:
And both lines lie on one another,
This means that, both lines have the following features:
When lines have the above features to be the same, it means the equations of both lines are the same.
And as such, the solution to the system is infinitely many solutions.
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