[A] Verify a - (-b) = a + b for the value a = 21 and b = 8.
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Answer:
(i) a = 21, b = 18
a – (-b) = 21-(-18)
21-(-18) = 21 + 18
21+18= 39
a + b = 21+18
21+18 = 39
21-(-18) = 21+18 = 39
Answered by
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Step-by-step explanation:
A = 21
B = 8
LHS
A- (-B) = 21 - ( -8) = 21 + 8 ( negative times negative is positive) which gives 29
RHS
A+ B = 21 + 8 gives 29
LHS = RHS
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