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

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

<gadget id="calculator">2 - (1/2) - (1/2)</gadget>
<output>1</output>

<gadget id="calculator">3 / 1</gadget>
<output>3</output>

<result>3</result>