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Mathematics

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Heather , deon and trey sent a total of 109 text messages over their cell phones during the weekend. Trey sent 3 times as many messages as deon. Deon sent 9 fewer messages than heather . How many messages did they each send

Answer :

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Answer:

Heather: 29

Deon: 20

Trey: 60

Step-by-step explanation:

Heather: x

Deon: x - 9

Trey: 3(x-9)

x + x-9 + 3(x-9) = 109

5x - 36 = 109

x = 29

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