# how to solve x+2y-6 2x+4y-28

steps on how to solve equations using the graphing method

x + 2y - 6 = 0
2y = -x + 6
y = (-1/2)x + 3

2x + 4y - 28 = 0
4y = -2x + 28
y = (-1/2)x + 7

Notice that both lines have slope -1/2.
This means the two lines are parallel.
Parallel lines will have solutions only if one of them is on top of the other (or they are the same lines).

In this case, it is very clear that the two lines are different.
Hence, there is no solution to the two equations.

You can see a sketch here:
http://www.wolframalpha.com/input/?i=sketch++y+%3D+%28-1%2F2%29x+%2B+3+and+y+%3D+%28-1%2F2%29x+%2B+7

answered Apr 7, 2012 by anonymous
6x=-10-4y-19x=75+4y
answered Jun 18, 2012 by anonymous

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