The equation of the a straight line pass...

The equation of the a straight line passing through the points (1,2) and inclined at `45^(@)` to the line `y=2x+1` is

A

`5x+y=7`

B

`3x+y=5`

C

`x+y=3`

D

`x-y+1=0`

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The correct Answer is:

B

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