Last year, 76 people from the experimental school participated in tree planting activities. This year, the number of people who participated in tree planting has doubled from last year by 4 people. How many people participated in tree planting this year?
实验学校去年有76人参加植树活动，今年参加植树的人数比去年增加1倍还多4人，今年参加植树的有多少人？
<gadget id="calculator">1 + 1</gadget>
<output>2</output>

<gadget id="calculator">76 * 2</gadget>
<output>152</output>

<gadget id="calculator">152 + 4</gadget>
<output>156</output>

<result>156</result>