Tomas makes a photobook online and sends copies to 4 family members. There is a $6 shipping charge for each photobook. He pays a total of $112.
Which equation can be used to find the price, x, of one photobook?
4x + 6 = 112
4(x + 6) = 112
42 - 6 = 112
4(x – 6) = 112