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how long is the shorter song?

Amanda composed two songs. The longer song is 126 seconds less than twice the length of the short song. The longer song is 286 seconds. How long is the shorter song?

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Thomas K. | Patient and Friendly Math and Physics TutorPatient and Friendly Math and Physics Tu...
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LongSong = 286s
LongSong = 2 * ShortSong - 126s
 
=>
2 * ShortSong - 126s = 286s
2 * ShortSong = 286s + 126s
2 * ShortSong = 412s
ShortSong = 206s

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Thanks so much... Its been a long minute since ive done math lol its sad. Ur great thanks!!!!??????