Can anyone answer this all
plz
plz
plz be quick
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Answered by
0
Answer:
the "ii" option
a = 50 b = 21
as 50 -(-21) = 50 + 21
so a -(-b) = a+b
Answered by
1
Answer:
I) -17 - (-(+15) = -17 + 15
= -17 - (-15) = -17 + 15
= -17 + 15 = -17 + 15
= - 2 = - 2
Hence , proved.
II) 50 - (-21) = 50 + 21
= 50 + 21 = 50 + 21
= 71 = 71
Hence , proved.
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