Question

verify a-(-b)= a+b for the following values of a and b. (a) a= 12 , b= 81
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Answer 1

Answer:

(i) a = 21, b = 18

a – (-b)  = 21-(-18)

21-(-18) = 21 + 18

21+18= 39

a + b = 21+18

21+18 = 39

Answer 2

From the question,

a = 21 and b = 18

To verify a – (- b) = a + b

Let us take Left Hand Side (LHS) = a – (- b)

= 21 – (- 18)

21 – (- 18)= 21 + 18

21 – (- 18)= 21 + 18= 39

Now, Right Hand Side (RHS) = a + b

= 21 + 18

= 21 + 18= 39

By comparing LHS and RHS

LHS = RHS

39 = 39

Hence, the value of a and b is Verified.