Question

Verify a – (– b) = a + b for the following values of a and b : a = 28, b = 11

Answer 1

28-(-11)=28+11
39=39
a and b =39/39
a and b=1

Answer 2

Given :

a - (- b) = a + b

we know, that ( - ) x ( - ) = ( + )

Given :

a = 28 and b = 11

substituting the values of "a" and "b "

a - (- b) = a + b

28 - (- 11) = 28 + 11

28 + 11 = 28 + 11

39 = 39

Hence : Values are same.

Verified : a - (- b) = a + b