It is known that 8x-2.5*8=24.8, so how much is 0.38+2.2x=.
已知8x-2.5*8=24.8，那么0.38+2.2x=多少．
<gadget id="calculator">2.5 * 8</gadget>
<output>20</output>

<gadget id="calculator">20 + 24.8</gadget>
<output>44.8</output>

<gadget id="calculator">44.8 / 8</gadget>
<output>5.6</output>

<gadget id="calculator">2.2 * 5.6</gadget>
<output>12.32</output>

<gadget id="calculator">0.38 + 12.32</gadget>
<output>12.7</output>

<result>12.7</result>