Solve the equation: 1.3x-0.4*3=1.4.
解方程：1.3x-0.4*3=1.4．
<gadget id="calculator">0.4 * 3</gadget>
<output>1.2</output>

<gadget id="calculator">1.4 + 1.2</gadget>
<output>2.6</output>

<gadget id="calculator">2.6 / 1.3</gadget>
<output>2</output>

<result>2</result>