Solve for x and y : 2x + y = 6 and 2x - y = 2

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Solution

2x+y=6...........(1)
2x-y=2............(2)
Adding (1) and (2) gives,
4x=8
x=2
Sub in (1) gives,
2×2+y=6
4+y=6
y=2

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