20 + 8x = 32
- 20
8x = 12
-- --
8 8
x = 3/2= 1 1/2
80 because when u do 10 times 8 it’s 80
St meaans s times t
s=-4
t=9
st=-4 times 9
negative times positive=negative
4 times 9=36
-4 time s9=-36
st=-36
answer is -36
We know that Ava is paying $2 dollars per week so if L is the money that she owes and t is the number of weeks, and I is the initial debt so we can write an equation like:

Now we can replace the info we have to find the value of I so:

and we solve for I

So the final equation will be:
3x-5y=25 i hope this helps