  In this short communication we introduce a rather simple autonomous system of
2 nonlinearly-coupled first-order Ordinary Differential Equations (ODEs), whose
initial-values problem is explicitly solvable by algebraic operations. Its ODEs
feature 2 right-hand sides which are the ratios of 2 homogeneous polynomials of
first degree divided by the same homogeneous polynomial of second degree. The
model features only 4 arbitrary parameters. We also report its isochronous
variant featuring 4 nonlinearly-coupled first-order ODEs in 4 dependent
variables, featuring 9 arbitrary parameters.
