SOLUTION: 2x - y = 10 4x - 2y = 7 I am supposed to use elimination, when i tried it several times i kept ending up with this: -4x + 2y = -20 4x - 2y = 7 This would cancel both the

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons  -> Linear Equations Lesson -> SOLUTION: 2x - y = 10 4x - 2y = 7 I am supposed to use elimination, when i tried it several times i kept ending up with this: -4x + 2y = -20 4x - 2y = 7 This would cancel both the      Log On


   

Question 565125: 2x - y = 10
4x - 2y = 7
I am supposed to use elimination, when i tried it several times i kept ending up with this:
-4x + 2y = -20
4x - 2y = 7
This would cancel both the 4x's and 2y's.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
If you add the last two equations together, you'll get

0x+0y = -13

or

0 = -13

which is always false. So there are no solutions and this system is inconsistent.
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