Question 379302
let ducks be x numbers
goats be y numbers
..
x+y = 95....................(1)
..
2x+4y = 316.................(2)
multiply (1) by -2
-2x-2y=-190
add this to (2)
4y-2y=316-190
2y=126
/2
y=63 The number of goats.
plug value of y in (1)
x+63=95
x= 32 ... The number of ducks.
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