The (3/4) of a number is 40 less than twice the number. Find this number.
一个数的(3/4)比这个数的2倍少40，求这个数．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">2 - (3/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">40 / (5/4)</gadget>
<output>32</output>

<result>32</result>