1. First distribute the 9(c+5) to get: 9c+45+3c=11
2. The next thing to do is combine like terms to make the equation: 12c+45=11
3. Now you should subtract 45 from 11 to get "c" by itself: 12c= -34
4. Divide -34 by 12 to finalize your answer and get: c= -34/12
5. Finally simplify the fraction to get your final answer: c= -17/6
Final Answer: c = -17/6