exam Maths Puzzle Numerical Ability

The members of a flying club plan to share equally the cost of a $200,000 airplane. The members want to 5 more people to join the club so that the cost per person will decrease by $2,000. How many members are currently in the club?

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How would this be translated?
Williams offers new scholarships if and only if either Amherst reduces class size or Smith does not hire new faculty.
Solve.

7x + x(x-3) = 0

Find the x-intercepts of f(x)= 7x + x(x-3)

a. What are the solutions?
b. What are the x-intercepts?

Please help, I keep getting confused and told I do not have the correct answer.