Tim answered all the questions on his math test but got $10$ answers wrong. He received $4$ points for every correct answer, and there was no penalty for wrong answers. His score was $76$ points. **Write an equation to determine the total number of questions $(q)$ on Tim's math test.** [[☃ expression 1]] **Find the total number of questions on his math test.** [[☃ math-keypad 1]] questions