4) PROBLEMAS QUE SE RESUELVEN CON SISTEMA DE ECUACIONES LINEALES DE 3X3. POR SUSTITUCIÓN.

PROBLEMS SOLVED WITH A SYSTEM OF 3X3 LINEAR EQUATIONS. On a farm, there are twice as many cats as dogs and three times as many chickens as dogs and cats combined. How many cats, dogs, and chickens are there if there are 96 animals in total?