Mathematically, that is 12(8+t). Distribute the 12, and you get 96 + 12t, or 12t + 96.
1. added four to both sides
2. divided both sides by two
29/3 - 17/3
15/3 is your answer, or 5
If you would like to solve 5/31 / 15/23, you can calculate this using the following steps:
5/31 / 15/23 = 5/31 * 23/15 = 23/93
The correct result would be C. 23/93.