Solve the equation: 95%x-5%x=720.
解方程：95%x-5%x=720．
<gadget id="calculator">10 / 9</gadget>
<output>10/9 = around 1.111111</output>

<gadget id="calculator">720 * (10/9)</gadget>
<output>800</output>

<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">(9/10) * (10/9)</gadget>
<output>1</output>

<gadget id="calculator">800 / 1</gadget>
<output>800</output>

<result>800</result>