A shopping mall bought 120 kilograms more mushrooms than fungus, and the kilogram of fungus is equivalent to (3/7) of mushrooms. How many kilograms of mushrooms are there? (solution with equation)
某商场购进冬菇比木耳多120千克，其中木耳的千克数相当于冬菇的(3/7)，冬菇有多少千克？(用方程解答)
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">1 - (3/7)</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">120 / (4/7)</gadget>
<output>210</output>

<result>210</result>