11x-(4.5-8x)*2=15.
11x-(4.5-8x)*2=15．
<gadget id="calculator">4.5 * 2</gadget>
<output>9</output>

<gadget id="calculator">9 + 15</gadget>
<output>24</output>

<gadget id="calculator">8 * 2</gadget>
<output>16</output>

<gadget id="calculator">11 + 16</gadget>
<output>27</output>

<gadget id="calculator">24 / 27</gadget>
<output>8/9 = around 0.888889</output>

<result>8/9 = around 0.888889</result>