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Nesterboy [21]
3 years ago
12

25 points for grabs!

Mathematics
1 answer:
coldgirl [10]3 years ago
3 0

Answer:

  • 6 marbles

Step-by-step explanation:

Let the initial number of marbles be x

Then added 3 and got 9 as final number

<u>Equation for this and solution</u>

  • x + 3 = 9
  • x = 9 - 3
  • x = 6
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