Question

Write down a pair of integers whose a) sum is (-8) b) difference is (-20)

Answer 1

Answer:

Let the 2integers be x and y, their sum = x+y = -8 and difference = x-y = -20, Now by elemination method , we get y=6, x+y=-8 , x+6=-8, x=-8-6, x= -14. Hence the pair of integers whose sum is -8 and difference is -20 are (6, -14) respectively. Hope this helps you

Answer 2

Answer:

x = -14        ;   y = 6

Step-by-step explanation:

According to question,

x + y = -8 (equation i)

x - y = -20 (equation ii)

Add (i) and (ii),

x + y + x - y = -8 - 20

2x = -28

x = -28/2

x = -14

Putting x = -14 in (i)

x + y = -8

-14 + y = -8

y = -8 + 14

y = 6

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