Question

Question 5.
Write down a pair of integers whose
(i) sum is -5
(ii) difference is -7
(iii) difference is -1
(iv) sum is 0​

Answer 1

Answers :-)

(i) -8+3 = -5

(ii) -5-2 = -7

(iii) 1-2 = -1

(iv ) -5+5 = 0

Answer 2

Answer:

(i) (-7 , 2)

(ii) (-9, -2)

(iii) (-3, -2)

(iv) (2,-2)

Explanation:

• Sum  is -5

Let -7 and 2 be the two numbers.

So, the sum of -7 and 2 = -7 + 2 = -5

According to the question we need to show that

• Difference is -7

Let -9 and -2  be the required two numbers.

Now, according to the question we need to show that the difference between -9 and -2 is -7.

⇒ -9 - (-2) = -9 + 2 = -7

• Difference is -1

Let -3 and -2 be the two numbers

Now, according to the question we need to show that, the difference between -3 and -2 is -1.

⇒ -3 - (-2) = -3 + 2= -1

• Sum is 0

Let 2 and -2 be the two integers.

Now, according to the question we need to show that, the sum of 2 and -2 is 0.

⇒ 2 + (-2) = 2 - 2 = 0

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