Solve the equation: 1(3/4)x-(1/2)x=6.25.
解方程：1(3/4)x-(1/2)x=6.25．
<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">6.25 / (5/4)</gadget>
<output>5</output>

<result>5</result>