Interstellar Basic Algebra

5 * + 4/3 * +
4 * + 20/3 * -
6/7 * + 1/3 * +
8/7 * - 1 * +
8 * + 2/5 * -
13/3 * - 37/5 * +
2/3 *
= 1a + 2b + 3c + 4d + 5e + 6f + 7g + 8h + 9i + 10j + 11k + 12l + 13m

84a + 57b + 37.5c + 60d + 55.5e + 68f + 41g + 116h + 231i + 33j + 300k + 91.5l + 330.5m = ?+?+?+?+?+?+?+?+?+?+?+?+?