Seven bags of white sugar are shipped from the store. After taking out 16 kilograms from each bag, the remaining white sugar is exactly equal to the weight of the original three bags. How many kilograms does the original bag of white sugar weigh?
商店运来7袋白糖，从每袋中取出16千克后，余下的白糖恰好等于原来3袋的重量，原来一袋白糖重多少千克？
<gadget id="calculator">7 - 3</gadget>
<output>4</output>

<gadget id="calculator">7 / 4</gadget>
<output>7/4 = around 1.75</output>

<gadget id="calculator">16 * (7/4)</gadget>
<output>28</output>

<result>28</result>