It is known that X=5, Y=8, so how much is 4.8X-3Y=.
已知X=5，Y=8，那么4.8X-3Y=多少．
<gadget id="calculator">4.8 * 5</gadget>
<output>24</output>

<gadget id="calculator">3 * 8</gadget>
<output>24</output>

<gadget id="calculator">24 - 24</gadget>
<output>0</output>

<result>0</result>