Question

C .12/x+y−4/x−y= 1 ,28/x+y−4/x−y= 5

Answer 1

Step-by-step explanation:

12/x+y-4/x-y=1

12/x-4/x=1

12-4/x=1

8/x=1

And

28/x+y-4/x-y=5

28/x-4/x=5

28-4/x=5

24/x=5

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