If xxx represents the price of a book and you buy 333 books for \45,whatistheequationfor, what is the equation for ,whatistheequationforx$?
x+3=45x + 3 = 45x+3=45
3x=453x = 453x=45
x−3=45x - 3 = 45x−3=45
x=45×3x = 45 \times 3x=45×3