SOLUTION: 2x+y=5
2x+y=1 substatution
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Question 566470: 2x+y=5
2x+y=1 substatution
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
2 x + 1 y = 5 .............1
1 y = 1 -2 x ---------2
/ 1 =
y = 1 -2 x
Substitute y in (1)
2 x + 1 ( 1 -2 x ) =
2 x + 1 + -2 x = 5
2 x -2 x = 5 -1
0 x = 4
/ 0
x= undefined
So the system has no solution. The lines are parallel
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