My Math Teacher is Awful. How would I find a and x if I don't know what the numbers are?

Question

The question is a=5x and you need 80$. She said I specifically did not do this question. When NO ONE DID.

Answer 1

Assuming a represents an amount, so a = $80

5x means 5 times some value x.

A story could be: You have 5 weeks to save $80. How much must you save each week?

$80 = 5x

$16 = x

You must save $16 each week.

Now I am only guessing.