(2/3) of a number is 4 less than (7/3) times of 30. What is this number? (solution with equation)
一个数的(2/3)比30的(7/3)倍还少4，这个数是多少？(用方程解答)
<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">70 - 4</gadget>
<output>66</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">66 / (2/3)</gadget>
<output>99</output>

<result>99</result>