This is question I need help with.

Question

The annual gym subscription for a single member is $1000, while an annual family membership is $1500. The gym is considering increasing all membership fees by the same amount. If this is done then a single membership would cost of a family 5/7 membership. Write an equation to model the situation. Solve the equation to find the amount of the proposed increase. Write a sentence stating your
solution

Answer 1

If your garbled sentence means
"single membership would cost 5/7 of a family membership"
then you have
1000+x = 5/7 (1500+x)
x = 250

Answer 2

Thank you