Solve the equation: 5*(x+2.5)=35.
解方程：5*(x+2.5)=35．
<gadget id="calculator">5 * 2.5</gadget>
<output>12.5</output>

<gadget id="calculator">35 - 12.5</gadget>
<output>22.5</output>

<gadget id="calculator">22.5 / 5</gadget>
<output>4.5</output>

<result>4.5</result>