verify a + b = a + (-b) a= 23 b = -42
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Step-by-step explanation:
I think your question is wrong.
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Answer:
L.H.S a+b
putting a =23 b=-42
a+b
=23-42=-19
R.H.S
a+(-b)
=23+42
=65
therefore L.H.S not equal to R .H.S
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