How many trees are planted on both sides of a 432-meter-long road, and the distance between two adjacent trees is 9 meters? How many trees are planted from one end of the road to the other?
沿一条长432米的公路两侧种数，相邻两棵树相隔9米，从公路一端到另一端一共种树多少棵？
<gadget id="calculator">432 / 9</gadget>
<output>48</output>

<gadget id="calculator">48 + 1</gadget>
<output>49</output>

<gadget id="calculator">49 * 2</gadget>
<output>98</output>

<result>98</result>