A furniture factory wants to produce a batch of sofas, 64 sets are produced in the first week, 86 sets are produced in the second week, and (3/10) of the total number of sofas are produced in two weeks. How many sets of sofas will the furniture factory produce?
某家具厂要生产一批沙发，第一周生产了64套，第二周生产了86套，两周生产了这批沙发总数的(3/10)．家具厂还要生产多少套沙发？
<gadget id="calculator">64 + 86</gadget>
<output>150</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">150 / (3/10)</gadget>
<output>500</output>

<gadget id="calculator">500 - 150</gadget>
<output>350</output>

<result>350</result>