Let “x” be the rate of shipping and let “y” as the special
rate for each jersey.
The equation for the spring season order is given by:
Eq. 1 x
The equation for the summer season order is given by:
Eq. 2 x
We then equate the Eq. 1 and Eq. 2 and solve for x and y.
x = $7 ; y = $6
Hope my answer would be a great help for you.