Question

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(iv) If a +b=75 and b = 20, then a =
16. Write T' for true and 'F for false for each of the following:
(1) The sum of an integer and its opposite is always zero.
(ii) The sum of a positive integer and a negative integer is negative.
(iii) 32 - 52 + 4 + 8 = 27.
(iv) 8 + 4 x 2 = 1.
(v) The product oftwo negative integers is a negative integer.
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Answer 1

Answer:

(iv) if a+b =75 and b= 20

then a _

a+b= 75

a+20=75 [ b = 20]

a =75-20

a=55 ans