The price of each table is three times that of each chair, 2 tables and 9 chairs cost 450 yuan, how much is each table?
每张桌子的价钱是每把椅子的3倍，2张桌子和9把椅子共用去450元，每张桌子多少元？
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<gadget id="calculator">6 + 3</gadget>
<output>9</output>

<gadget id="calculator">450 / 9</gadget>
<output>50</output>

<gadget id="calculator">50 * 3</gadget>
<output>150</output>

<result>150</result>