Buying 2 tables and 6 chairs costs 780 yuan. It is known that the price of each table is 210 yuan. How much is the price of each chair? (solution with equation)
买2张桌子和6把椅子共用780元，已知每张桌子的价钱是210元，每把椅子的价钱是多少钱？(用方程解答)
<gadget id="calculator">210 * 2</gadget>
<output>420</output>

<gadget id="calculator">780 - 420</gadget>
<output>360</output>

<gadget id="calculator">360 / 6</gadget>
<output>60</output>

<result>60</result>