It is known that 4x+8=10, then 2x+18=how much.
已知4x+8=10，那么2x+18=多少．
<gadget id="calculator">10 - 8</gadget>
<output>2</output>

<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) * 2</gadget>
<output>1</output>

<gadget id="calculator">1 + 18</gadget>
<output>19</output>

<result>19</result>