A vendor sells tool chests at a flea market for $65. If she makes a profit of 30% on each unit sold what does she pay the manufacturer for each tool chest? (Hint: The retail price = wholesale price + markup)

Here is what I get

65 = x + .30(65)

65 = x + 19.50

45.50 = x

I know that this can't be correct because the book says the answer is 50, but how did they arrive at that answer? Please show me. Thanks in advance.