Solve the equation: (1+50%)x=45.
解方程：(1+50%)x=45．
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">45 / (3/2)</gadget>
<output>30</output>

<result>30</result>