The solution of equation 5x-16=31 is x=how much.
方程5x-16=31的解是x=多少．
<gadget id="calculator">31 + 16</gadget>
<output>47</output>

<gadget id="calculator">47 / 5</gadget>
<output>47/5 = around 9.4</output>

<result>47/5 = around 9.4</result>