Find the solution of the following pairs of linear equation by the graphical method:
2X+y=6
2X-y=2
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Answer:
2x+y=6. (1)
2x-y=2. (2)
add equation 1 and 2
we get,
2x + 2x = 4x
y - y. = 0
6+2=8
4x= 8
x=8/4
x= 2
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