Answer:
it gives u a green marble.
Step-by-step explanation:
If I have 1 red marble replaced by a green marble then I have a green marble.
You would have 640 flies in 3 days.
There's not much you can or should do here other than to "solve for d."
Subtract 22 from both sides. Then 22 - 22 - 28d = -12 - 22 = -34
Then -28d = -34, and d = -28 / (-34) = + 14/17 (answer)
