There are nine baskets of apples, each of which has the same mass, and 26kg of apples are taken from each basket. The remaining apples in all the baskets have the same mass as the original three baskets of apples. What is the mass of each original basket of apples in kilograms?
有九筐苹果，每筐苹果质量相等，从每筐中都取出26kg苹果，所有筐里剩下的苹果的质量和原来3筐苹果的质量相等，求原来每筐苹果的质量是多少千克？
<gadget id="calculator">9 - 3</gadget>
<output>6</output>

<gadget id="calculator">9 / 6</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">26 * (3/2)</gadget>
<output>39</output>

<result>39</result>