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?
m = 1385+T
m-629 = 4(T-87)
(1385+T)-629 = 4(T-87)
756+T = 4t - 348
1104 = 3t
t = 368
