The iron and steel plant plans to produce 5 tons of steel every day, and the task can be completed in 7 days. Now it has to complete this batch of tasks 2 days ahead of schedule. How many tons of steel should be produced per day?
钢铁厂计划每天生产5吨钢材，7天可以完成任务，现在要提前2天完成这批任务，每天应多生产多少吨钢材？
<gadget id="calculator">7 - 2</gadget>
<output>5</output>

<gadget id="calculator">7 / 5</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">5 * (7/5)</gadget>
<output>7</output>

<gadget id="calculator">7 - 5</gadget>
<output>2</output>

<result>2</result>