Consider the following system of simultaneous ordinary differential equations {dx/dt = 2x - y dy/dt = 4x - 2y with initial conditions x (0) = 2 and y(0)= 1. Symbolically solve for x(t) and y(t), and then display the results using a combination of the simplify and pretty commands. Before each pretty command, use a print statement to label what the "pretty" output represents