The unit price of a long table in a meeting room is 7,800 yuan, and the 12 chairs that go with it are 105 yuan each. How much does it cost to buy a set of tables and chairs?
一种会议室的长桌的单价是7800元，与它配套的12把椅子每把105元，买一套桌椅一共需要多少元？
<gadget id="calculator">105 * 12</gadget>
<output>1_260</output>

<gadget id="calculator">1_260 + 7_800</gadget>
<output>9_060</output>

<result>9_060</result>