Solve the equation: 1.3x+1.5x=1.4.
解方程：1.3x+1.5x=1.4．
<gadget id="calculator">1.3 + 1.5</gadget>
<output>2.8</output>

<gadget id="calculator">1.4 / 2.8</gadget>
<output>0.5</output>

<result>0.5</result>