How to write the algebraic equation

Question

Chyna starts the day with $25.40 in her account. She takes a taxi to the airport that charges an initial fee of $3.25 and then an additional $1.75 for every mile that travels. Write an algebraic equation for how far Chyna lives from the airport if her account balance after the taxi ride was -$9.35.

I was thinking:

3.25 + 1.75x = -9.35

But I'm confused about what to do with the 25.40

Answer 1

You must subtract the cost of the taxi ride from her initial amount, and set that difference equal to her balance, and then solve for the number of miles traveled (x).

25.40 - (3.25 + 1.75x) = -9.35

Can you finish from here?