The statement is true, because the lines are parallel.
The solid line \( y = -x + 3 \) has a slope of -1, while the dashed line \( x + y = 8 \) can be rewritten as \( y = -x + 8 \), which also has a slope of -1. Since both lines have the same slope but different y-intercepts (3 for the solid line and 8 for the dashed line), they are parallel and will never intersect, indicating that there is no solution to the system of equations.