Step 1: write the number as a product, helps visualizing common factors.

I've marked things being repeating, so, group them up

Now you have a common factor again

Extra, if you want to split the first one, you can see it as the difference of

and

which is further split into
1/4+1/7=t
I am 99% sure this is correct. Good luck
First we need to find the cost per chocolate bar aka the unit rate per chocolate bar
We start by taking 3$ and dividing it by 2 which gives us a total of 1.50$ each per chocolate bar
Now that we know that our unit rate is 1.50$ per bar we then do 1.50$ times 6,700 which gives us a total of 10,050$
This means that our answer is 10,050$ meaning you paid 10,050$ for 6,700 chocolate bars
Y=7x+13
-7x -7x
-7x+y=13
Answer:
-7x + y = 13