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# parallel lines Watch

1. Hi Guys,
i have a very simple question about parallel lines. actually the equation of a line was given and i've managed to find the equation of a line parallel to the given line but my problem is when i want to write it in the form of ax+by+c=0, my answer becomes different with the text book in terms of signs . please can anyone tell me if these two lines are the same or I'm making a mistake somewhere thanks
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2. (Original post by Alen.m)
Hi Guys,
i have a very simple question about parallel lines. actually the equation of a line was given and i've managed to find the equation of a line parallel to the given line but my problem is when i want to write it in the form of ax+by+c=0, my answer becomes different with the text book in terms of signs . please can anyone tell me if these two lines are the same or I'm making a mistake somewhere thanks
They are the same thing.

Move everything over to the other side:

.

See, same thing. Both versions would score full marks.
3. (Original post by Zacken)
They are the same thing.

Move everything over to the other side:

.

See, same thing. Both versions would score full marks.
thanks , just wanted to make sure
4. (Original post by Alen.m)
thanks , just wanted to make sure
No problem.

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