A sofa factory recruited a group of contract workers, stipulating that each person could get a salary of 12,000 yuan and a big sofa for one year of work. One contract worker left the factory after only working for 5 months. The salary he got was a big sofa and 765 yuan. How much is a big sofa worth?
某沙发厂招收一批合同工，规定每人工作一年可得工资12000元和一个大沙发，有一个合同工只干了5个月就离厂了，所得的报酬是一个大沙发和人民币765元．问一个大沙发价值多少元？
<gadget id="calculator">12_000 / 12</gadget>
<output>1_000</output>

<gadget id="calculator">1_000 * 5</gadget>
<output>5_000</output>

<gadget id="calculator">5_000 - 765</gadget>
<output>4_235</output>

<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/12) * 5</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">1 - (5/12)</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">4_235 / (7/12)</gadget>
<output>7_260</output>

<result>7_260</result>