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Bas_tet [7]
3 years ago
6

Use elimination X+y =9 X-y=7

Mathematics
1 answer:
Art [367]3 years ago
3 0

Answer:

x = 8

y = 1

Step-by-step explanation:

  x + y = 9

- ( x - y = 7)

-------------------

      2y = 2

        y = 2/2

        y = 1

   x + y = 9

x + ( 1 ) = 9

         x = 9 - 1  

         x = 8

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3 years ago
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Hope this helps you understand this question

6 0
4 years ago
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A

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97. An elevator in a tall building goes up 7 floors, then
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5 0
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