3.6x-2.7x=4.5, the solution of the equation is x=how much
3.6x-2.7x=4.5，方程的解是x=多少
<gadget id="calculator">3.6 - 2.7</gadget>
<output>0.9</output>

<gadget id="calculator">4.5 / 0.9</gadget>
<output>5</output>

<result>5</result>