What is the value of 6x-2y when x=2, y=0.8
当x=2，y=0.8时，6x-2y的值是多少
<gadget id="calculator">6 * 2</gadget>
<output>12</output>

<gadget id="calculator">2 * 0.8</gadget>
<output>1.6</output>

<gadget id="calculator">12 - 1.6</gadget>
<output>10.4</output>

<result>10.4</result>