Answer :

Answer:

= { - 23 - (-34)} + { - 15 + ( - 25)}.

= {- 23 + 34} + { - 15 - 25}.

= 11 + ( - 40).

= 11- 40

= -29

Step-by-step explanation:

{-23-(-34)}+{-15-25}

{-23-(-34)}+{-40}

{-23-(-34)}-40

{-23+34}-40

{+11}-40

+11-40

-29 (Answer)

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