Question

verify a - ( - b ) = a + b for the value of a = 21 and b = - 16​

Answer 1

a - ( - b ) = a + b

substituting values

21 - ( - ( - 16 ) )  = 21 - 16

21 - 16 = 21 - 16

5 = 5

Hence verified

Answer 2

Answer:

Step-by-step explanation:

a-(-b)=a+b

= 21-(-(-16)) = 21+(-16)

=21-16 = 21-16

= 5 = 5

Therefore, a-(-b)=a+b