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:) There are 18 animals in the field. Some are horses and some are geese. There are 56 legs in all.
How many of each animal are in the field?


Sagot :

Let number of horses be x, number of geese be y
x+y=18
4x+ 2y = 56
Substituting in Equation 1 into 2,
4x + 2y - 2(x+y) = 56-2(18)
2x = 20
x = 10
when x= 10, y= 8