Solve the equation: 0.5x+12.5*0.8=32x/2.
解方程：0.5x+12.5*0.8=32x/2．
<gadget id="calculator">12.5 * 0.8</gadget>
<output>10</output>

<gadget id="calculator">32 / 2</gadget>
<output>16</output>

<gadget id="calculator">16 - 0.5</gadget>
<output>15.5</output>

<gadget id="calculator">10 / 15.5</gadget>
<output>0.645161</output>

<result>0.645161</result>