Let x------------> number of chickens y------------> number of pigs
we know that chicken------> has 2 feet pig------------> has 4 feet then 2x+4y=98--------------------> equation 1 and x+y=37------------> y=37-x equation 2
<span>I substitute 2 in 1 </span>2x+4[37-x]=98--------------> 2x+148-4x=98 -2x=98-148-------------> 2x=50-------------> x=25
x+y=37------------> y=37-25-------------> y=12
the answer is 25 number of chickens 12 number of pigs
