# Do these three lines intersect the same point, and if so, where?

I know this is fairly basic stuff compared to most of the questions here, but I have to start somewhere.

How would I find out whether the following lines intersect the same point, and if so, where that is?

• y - 2x + 3=0
• 2x + y - 53=0
• y - x - 11=0

I've read the answers to "How to find where 3 lines intersect.", but the answers were too advanced for me, partly because I'm not learning math in English.
It would be great if someone could show me how they approached this problem.

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Try thinking of this as a simple three equation system. If you got a solution that satisfies all equations, you got an intersection point. –  kneidell Feb 16 '11 at 11:08

If you add the first two equations, you will find that these lines intersect at $y=25$. What is the corresponding $x$ value? Try to do similar things for the second and third equation, and the first and third equation. If these lines intersect at the same point, you should find the same answers.