The two buckets hold 50 kg of water in total. If 6 kg of water is poured out of the first bucket, the water in the two buckets will be the same. How much is the first bucket of water in kilograms?
两个水桶共盛水50千克，如果把第一桶里的水倒出6千克，两个水桶中的水就一样多了．第一桶原盛水多少千克．
<gadget id="calculator">50 + 6</gadget>
<output>56</output>

<gadget id="calculator">56 / 2</gadget>
<output>28</output>

<result>28</result>