Question

a farmer had twice as many chickens as ducks. when he sold away 284 chickens and 34 ducks,he had as many chickens as ducks left. how many chickens had he left????¿¿¿¿

Answer 1

chickens = 2x
ducks = x

$2x - 284 = x - 34 \\ x = 250 \\ \\ thus \: he \: had \: 250 \times 2 - 284 = 216 \: chickens$