A piece of iron wire, cut off 5 sections, each section is 7 meters, and there are 22 meters left, how many meters is the original length of this iron wire?
一根铁丝，截去5段，每段7米，还剩下22米，这根铁丝原长多少米？
<gadget id="calculator">7 * 5</gadget>
<output>35</output>

<gadget id="calculator">35 + 22</gadget>
<output>57</output>

<result>57</result>