In a subtraction formula, the subtrahend is 7 times the difference, the minuend is 136, what is the subtrahend.
一个减法算式里，减数是差的7倍，被减数是136，减数是多少．
<gadget id="calculator">7 + 1</gadget>
<output>8</output>

<gadget id="calculator">136 / 8</gadget>
<output>17</output>

<gadget id="calculator">17 * 7</gadget>
<output>119</output>

<result>119</result>