During the festival, products in shopping malls are sold at a discount. A down jacket is priced at 324 yuan, which is 79 yuan cheaper than the original price. How much is the original price? (List the equations containing the unknown x, and then answer)
节日期间，商场的商品打折出售，一件羽绒服售价324元，比原价便宜了79元，原价多少钱？(列出含有未知数x的等式，再解答)
<gadget id="calculator">324 + 79</gadget>
<output>403</output>

<result>403</result>