A rectangular playing field is 76.4 meters wide, and its length is 1.8 meters less than twice its width. What is the length of this playing field in meters?
一个长方形的运动场，宽76.4米，长比宽的2倍少1.8米，这个运动场的长是多少米？
<gadget id="calculator">76.4 * 2</gadget>
<output>152.8</output>

<gadget id="calculator">152.8 - 1.8</gadget>
<output>151</output>

<result>151</result>