Solve the equation: (33+x)*(1/7)=3+x.
解方程：(33+x)*(1/7)=3+x．
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">33 * (1/7)</gadget>
<output>33/7 = around 4.714286</output>

<gadget id="calculator">(33/7) - 3</gadget>
<output>12/7 = around 1.714286</output>

<gadget id="calculator">1 - (1/7)</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">(12/7) / (6/7)</gadget>
<output>2</output>

<result>2</result>