Question

answer.......................

Answer 1

Answer:

-126

Step-by-step explanation:

let the no be x

so, 495 = 621-x

= x = 495-621

= x= -126

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Answer 2

Answer:

Answer is 126

Step-by-step explanation:

First step is. 621 - 495 = 126

Second step is. 621 - 126 = 495