Question

Noah paid $56 for a book and a CD player. The CD player cost 6 times as much as the book. What is the price difference between the two items?

Don’t do b+c = 56
c = 6b

I’m not guessing a random number

Answer 1

so why guess?
Using those two equations, you can easily see that b + 6b = 56
the book cost $8.
Now finish it off.