Solve the equation: 75-5x=57.
解方程：75-5x=57．
<gadget id="calculator">75 - 57</gadget>
<output>18</output>

<gadget id="calculator">18 / 5</gadget>
<output>18/5 = around 3.6</output>

<result>18/5 = around 3.6</result>