ax-9.2=0.8 is the same solution as 36x+4.8=12, what is the value of 2a-3.2?
ax-9.2=0.8同36x+4.8=12的解相同，则2a-3.2的值是多少．
<gadget id="calculator">0.8 + 9.2</gadget>
<output>10</output>

<gadget id="calculator">12 - 4.8</gadget>
<output>7.2</output>

<gadget id="calculator">7.2 / 36</gadget>
<output>0.2</output>

<gadget id="calculator">10 / 0.2</gadget>
<output>50</output>

<gadget id="calculator">2 * 50</gadget>
<output>100</output>

<gadget id="calculator">100 - 3.2</gadget>
<output>96.8</output>

<result>96.8</result>