The road construction team originally planned to build a road of 720 meters per day, but actually built 80 meters more than the original plan every day. In this way, 3 days before the completion of the entire road construction task, only 1,160 meters remained unbuilt. How long is this road in meters?
筑路队原计划每天筑路720米，实际每天比原计划多筑80米，这样在规定完成全路修筑任务前3天，就只剩下1160米未筑，这条路全长多少米？
<gadget id="calculator">720 * 3</gadget>
<output>2_160</output>

<gadget id="calculator">80 * 3</gadget>
<output>240</output>

<gadget id="calculator">240 - 1_160</gadget>
<output>-920</output>

<gadget id="calculator">2_160 + (-920)</gadget>
<output>1_240</output>

<gadget id="calculator">80 - 720</gadget>
<output>-640</output>

<gadget id="calculator">720 + (-640)</gadget>
<output>80</output>

<gadget id="calculator">1_240 / 80</gadget>
<output>31/2 = around 15.5</output>

<gadget id="calculator">720 * (31/2)</gadget>
<output>11_160</output>

<result>11_160</result>