If 2x-8=9, then 4x+3=how much
如果2x-8=9，则4x+3=多少
<gadget id="calculator">9 + 8</gadget>
<output>17</output>

<gadget id="calculator">17 / 2</gadget>
<output>17/2 = around 8.5</output>

<gadget id="calculator">4 * (17/2)</gadget>
<output>34</output>

<gadget id="calculator">34 + 3</gadget>
<output>37</output>

<result>37</result>