Solve the equation: (1/2)(1-2x)=((3(x-1))/4).
解方程：(1/2)(1-2x)=((3(x-1))/4)．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">3 * (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(1/2) + (3/4)</gadget>
<output>5/4 = around 1.25</output>

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

<gadget id="calculator">1 + (3/4)</gadget>
<output>7/4 = around 1.75</output>

<gadget id="calculator">(5/4) / (7/4)</gadget>
<output>5/7 = around 0.714286</output>

<result>5/7 = around 0.714286</result>