The sum of the sides of a cuboid is 60 decimeters. It is known that the length of the cuboid is 8 decimeters and the height is 2 decimeters. What is the width of the cuboid?
一个长方体的棱长总和是60分米，已知长方体的长为8分米，高为2分米，这个长方体的宽是多少分米？
<gadget id="calculator">60 / 4</gadget>
<output>15</output>

<gadget id="calculator">8 + 2</gadget>
<output>10</output>

<gadget id="calculator">15 - 10</gadget>
<output>5</output>

<result>5</result>