Question

0+=(-17)
$0 + = ( - 17)$
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Answer 1

Answer:

ok

Step-by-step explanation:

see the image. .......

Answer 2

Step-by-step explanation:

Let the invisible or required number be x then,

0 + x = (-17)

=> x = (-17) - 0 = (-17)

Answer) Hence, the required number is -17.