The solution of the equation 1.5x-0.4x=0.8 is x=how much.
方程1.5x-0.4x=0.8的解是x=多少．
<gadget id="calculator">1.5 - 0.4</gadget>
<output>1.1</output>

<gadget id="calculator">0.8 / 1.1</gadget>
<output>0.727273</output>

<result>0.727273</result>