Question

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Answer 1

Step-by-step explanation:

answer is (C)

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Answer 2

Answer:

C. (1,2)

Step-by-step explanation:

consider,

x+y=3

x=3-y.......1

consider,

x-y=-1

x=y-1........2

equating 1 and 2

we get,

3-y=y-1

2y=4

y=4÷2

y=2

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