3500 kg of green vegetables are shipped from the vegetable market, and the amount of Chinese cabbage shipped is more than that of green vegetables (1/7). How many kilograms of green vegetables and Chinese cabbage are shipped together?
菜场运来3500kg青菜，运来的大白菜比青菜多(1/7)，运来青菜和大白菜一共多少千克？
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">1 + (1/7)</gadget>
<output>8/7 = around 1.142857</output>

<gadget id="calculator">3_500 * (8/7)</gadget>
<output>4_000</output>

<gadget id="calculator">4_000 + 3_500</gadget>
<output>7_500</output>

<result>7_500</result>