Answer:

Explanation:
Let's first define the variables:
- y: The number of pieces of jewelry Grandma Fien gave
- n: The number of Carlson sisters
- j: The number of pieces of jewelry each sister received
We know that:
Grandma Gertrude gave 13 pieces of jewelry and Grandma Fien gave y pieces of jewelry,
For a total of 13 + y pieces of jewelry.
Since there are 5 sisters, each sister received:

So the expression is:
