Five years ago, the age of the older sister was three times that of the younger sister. Five years later, the combined age of the elder sister and the younger sister was 44 years old. How old is the elder sister this year?
5年前，姐姐年龄是妹妹的3倍，5年后，姐姐和妹妹年龄和是44岁，今年姐姐多少岁？
<gadget id="calculator">5 + 5</gadget>
<output>10</output>

<gadget id="calculator">44 - 10 - 10</gadget>
<output>24</output>

<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">6 * 3</gadget>
<output>18</output>

<gadget id="calculator">18 + 5</gadget>
<output>23</output>

<result>23</result>