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Marianne collected 1385 more stamps than Thomas.
When Marianne gave away 629 of her stamps & Thomas gave away 87 of his stamps,
Marianne still has four times as many stamps as Thomas. 
How many stamps did Thomas have at first?

 Jul 3, 2018
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m = 1385+T

m-629 = 4(T-87)

 

(1385+T)-629 = 4(T-87)

 

756+T = 4t - 348

 

1104 = 3t

 

t = 368

 Jul 3, 2018

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