The school bought 4 tables and 9 chairs for a total of 2520 yuan. Given that the price of a chair is 120 yuan each, how much is the price of a table? (solution by equation)
学校买4张桌子和9把椅子一共用2520元．已知椅子的价格是每把120元，桌子的价格是多少元？(用方程解)
<gadget id="calculator">9 * 120</gadget>
<output>1_080</output>

<gadget id="calculator">2_520 - 1_080</gadget>
<output>1_440</output>

<gadget id="calculator">1_440 / 4</gadget>
<output>360</output>

<result>360</result>