Question

verify a-(-b)=a+b for the following value of a and b. (a) a=21 b=18​

Answer 1

Answer:

21 - (-18) = 21 + 18

21 + 18 = 21 + 18

39 = 39

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Answer 2

a-(-b)=a+b

21-(-18)=21+18

21+18=21+18

39=39

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