The two systems represented in the problem is
- buying CDs from the store
- and buying the CDs online
This means we need to create separate equations for these separate systems!
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Let's create an equation for the first system
y will represent the total price the customer pays
x will represent the # of CDs bought!
[ y = 15x is our equation! ]
Let's do the second system
we will make sure the variables represent the same thing as they did in the first equation we made
[ y = 13.99x + 6 ]
*remember shipping is a constant in the problem, it doesn't change. So, we don't need to pair the number '6' with a variable.
I hope I helped! Comment if you have any questions or concerns!
-Gabby5792
