1.

Write a pair of integers whose sum is 15 and difference is - 9

Answer»

ANSWER: 3 and 12

Step-by-step explanation:

Let the integers be X and y.

x+y=15

x-y=-9

Add both equations-

x+y+x-y=15+(-9)

2x=6

x=3

We KNOW x+y=15

3+y=15

y=12

Therefore the integers are 3 and 12.



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