The expression given in the question is
5(10+g) + 14g + 4 = 50 + 5g + 14g + 4
= 19g + 54
This is the maximum simplification that can be done for the equation given in the question. I hope that this is the answer that you were looking for and the answer has actually come to your desired help. I also hope that the procedure is simple enough for you to understand.