Question

Mika’s gym allows her to bring 3 guests for free. After the first three, she must pay $7 per guest. How many guests, g, can she bring to the gym if she pays $42?

Three of these equations give the correct value of g. Which equation does NOT?

Answer 1

I would need to see the options

Explanation:

But here is how one could look. g=3+(m/p). In this equation g is the amount of guests she can brin, m the amount of money she has and p the price to bring in guests(after the third shown be the 3+...).

Answer 2

7g-3=42

Explanation:

I got it correct in imagine math. :)

Thank you.

Further explanations? Let me know. :)