Question

Solution ofx-y=2 and x+y=4 are

Answer 1

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Answer 2

x - y = 2

x + y = 4

x = 2 + y

x + y = 4

2 + y + y = 4  { substituting x with 2 + y )

2 + 2y = 4

2y = 4 - 2

2y = 2

y = 2/2 = 1