Question

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

Answer 1

If there are two songs written and the longest one is 126 seconds less than twice the length of the short song, and the longest one lasts 286 seconds, then the shorter song's length can be found using this formula: 
2x-126=286.
This would then turn into x-63=143 to show the time difference. Solving here for x, would be 206 seconds.