Verify a-(- b) is equal to a + b coma for a is equal to 21 b is equal to 18
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Answered by
0
Answer:
a=21,b= 18.
a-(-b)= a+b
21-(-18)= 21+18 (-,- = +)
21+18= 39
39= 39.
hence verified.
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Answered by
0
Answer:
hey mate
a-(-b)=a+b
a+{-1(-b)}=a+b
a+{-1×-b}=a+b
a+b=a+b
LHS = RHS
if two negative signs are multiplied or divided it will definitely be positive.
a=21 b=18
a-(-b)=a+b
21-(-18)=21+18
21+18=21+18
39=39
hence proved
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