It is known that 2x+1=9, then 5x-4.3ⅹ2=how much
已知2x+1=9，那么5x-4.3ⅹ2=多少
<gadget id="calculator">9 - 1</gadget>
<output>8</output>

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">4.3 * 2</gadget>
<output>8.6</output>

<gadget id="calculator">20 - 8.6</gadget>
<output>11.4</output>

<result>11.4</result>