Question

there were some ducks in the pond.28 ducks flew away.7 more arrived at the pond.now there are 43 ducks in the pond.how many ducks were in the pond to start
78
let there be x ducks at the start

x - 28 + 7 = 43
x = 43 - 7 + 28 = 64
78
BRUH how is that HELPING!!!!!!

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