Teacher Li bought 1 table and 5 chairs for a total of 230 yuan, 80 yuan for each table, how much is each chair? (solution by equation)
李老师买了1张桌子和5把椅子共花了230元，每张桌子80元，每把椅子多少元？(用方程解)
<gadget id="calculator">230 - 80</gadget>
<output>150</output>

<gadget id="calculator">150 / 5</gadget>
<output>30</output>

<result>30</result>