Let $$x$$ and $$y$$ be real numbers such that the following system of equations holds:
1. $$3x + 4y = 24$$
2. $$5x - 2y = 7$$
Calculate the values of $$x$$ and $$y$$ and compare them based on the following quantities:
Quantity A: $$x + y$$
Quantity B: $$10$$