Verify $a - (- b) = a + b$ for the following values of $a$ and $b$ .
(i) $a = 21$ , $b = 18$ (ii) $a = 75, b = 10$

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Solution

$(i) L H S = a - (- b) = 21 - (- 18) = 21 + 18 = 39 R H S = 21 + 18 = 39 ∴ L H S = R H S (i i) L H S = a - (- b) = 75 - (- 10) = 75 + 10 = 85 R H S = 75 + 10 = 85 ∴ L H S = R H S$

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Similar questions

Verify a − (−b) = a + b for the following values of a and b.

(i) a = 21, b = 18

(ii) a = 118, b = 125

(iii) a = 75, b = 84

(iv) a = 28, b = 11

Question 8(i)
Verify a - (-b) = a + b for the following values of a and b.
a = 21, b = 18

a - (- b) = a + b

a

b

a = 28, b = 1

a = 118, b = 125

a = 75, b = 84

a = 28, b = 1

Question 8(iii)
Verify a−(−b) = a + b for the following values of a and b.
a = 75, b = 84

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