Question

Verify a-(-b)= a + b for the following values of a and b.
(i) a = 21, b = 18
(ü) a = 118, b = 125
(iii) a= 75, b = 84
(iv) a = 28, b= 11
please answer each question step by step i will mark as the braniliest​

Answer 1

i) a = 21, b = 18

a - (-b) = a + b

➡ 21 - (-18) = 21 + 18

➡ 21 + 18 = 21 + 18

➡ 39 = 39

.°. L.H.S = R.H.S

______________.....

ii) a = 118, b = 125

a -(-b) = a + b

➡ 118 -(-125) = 118 + 125

➡ 118 + 125 = 118 +125

➡ 243 = 243

.°. L.H.S = R.H.S

_______________....

iii) a = 75, b = 84

a -(-b) = a + b

➡ 75 -(-84) = 75 + 84

➡ 75 + 84 = 75 + 84

➡ 158 = 159

.°. L.H.S = R.H.S

________________....

iv) a = 28, b = 11

a -(-b) = a + b

➡ 28 -(-11) = 28 + 11

➡ 28 + 11 = 28 + 11

➡ 39 = 39

.°. L.H.S = R.H.S

Answer 2

Answer:

1. a = 21 ; b = 18.

LHS=a-(-b)

=21-(-18)

=21+18

=39

RHS= a + b

=21 + 18

=39

LHS=RHS

all questions has to be done like this