Answer: the golfer would need to play golf 10 times per year.
Step-by-step explanation:
Let x represent the number of times per year that the golfer need to play golf for the two options to cost the same.
A social membership costs $1775 in annual dues. In addition, he would pay a $65 greens fee and a $25 golf cart fee every time he played. This means that the total cost of playing golf for x times with the social membership option is
1775 + (65 + 25)x
A golf membership costs $2425 in annual dues. With this membership, the golfer would only pay a $25 golf cart fee when he played. This means that the total cost of playing golf for x times with the golf membership option is
2425 + 25x
For the costs to be the same,
1775 + 65x + 25x = 2425 + 25x
65x + 25x - 25x = 2425 - 1775
65x = 650
x = 10