Solve the equation: 2(x-2.6)=8.
解方程：2(x-2.6)=8．
<gadget id="calculator">2 * 2.6</gadget>
<output>5.2</output>

<gadget id="calculator">5.2 + 8</gadget>
<output>13.2</output>

<gadget id="calculator">13.2 / 2</gadget>
<output>6.6</output>

<result>6.6</result>