A website charges the same shipping fee on every order. The table shows the relationship between the cost of the items on the website, w, and the total cost including shipping, y.
Cost of Items (
$18
$35
$86
Total Cost (y)
$26
$43
$94
Complete the equation so that it models the relationship between the cost of the items on the
website, x, and the total cost including shipping, y. Enter your answer in the box.
y=+