Respuesta :

20 horses in the farm
wolf1728

A) h + c = 40

B) 4h + 2c = 146  then multiplying A) by -2

A) -2h -2c = -80 then adding both equations

2h = 66

There are 33 horses and 7 chickens

DOUBLE CHECK

33*4 + 7*2 = 132 + 14 = 146 legs