The minuend, the sum of the subtrahend and the difference is 169, the subtrahend is 155 greater than the difference, what is the subtrahend
被减数，减数与差的和是169，减数比差大155，减数是多少
<gadget id="calculator">169 / 2</gadget>
<output>169/2 = around 84.5</output>

<gadget id="calculator">(169/2) + 15.5</gadget>
<output>100</output>

<gadget id="calculator">100 / 2</gadget>
<output>50</output>

<result>50</result>