Column calculation: 3 times a number is 5 more than 30 (7/3), find this number. (equation solution)
列式计算：一个数的3倍比30的(7/3)多5，求这个数．(方程解)
<gadget id="calculator">7 / 3</gadget>
<output>7/3 = around 2.333333</output>

<gadget id="calculator">30 * (7/3)</gadget>
<output>70</output>

<gadget id="calculator">5 + 70</gadget>
<output>75</output>

<gadget id="calculator">75 / 3</gadget>
<output>25</output>

<result>25</result>