Question 536123: I need to solve this by the elimination method and come up with an ordered pair as an answer but i'm not sure what to do.
5x+6y=4
10x+12y=8
So far I have multiplied -2 to the first equation to eliminate the x and find a value for y. Like this : 18y=12
18y/18=12/18
y=2/3 So would the first point be (-2, 2/3) ? or (-2, .66) where do i go from here?
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! I need to solve this by the elimination method and come up with an ordered pair as an answer but i'm not sure what to do.
5x+6y=4
10x+12y=8
So far I have multiplied -2 to the first equation to eliminate the x and find a value for y. Like this : 18y=12
------------
How did you get that?
-10x -12y = -8
10x + 12y = 8
-------------- Add
0 = 0
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The problem is the 2nd eqn is 2x the first.
--> dependent, no unique solution.
In effect, 1 eqn with 2 unknowns.
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18y/18=12/18
y=2/3 So would the first point be (-2, 2/3) ? or (-2, .66) where do i go from here?
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