What pair of numbers has a sum of 1 and a difference of 9?
x y x + y = 1
x y x - y = 9...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 31.03.2021 02:00, inlace1161
What pair of numbers has a sum of 1 and a difference of 9?
x y x + y = 1
x y x - y = 9
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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