Is the following system consistent or inconsistent? 2y = x - 7 -2x - 6y = -1

Mathematics
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Is the following system consistent or inconsistent?

 

2y = x - 7

-2x - 6y = -14 

Jan 20th, 2015

2y = x-7

x-2y =7

-2x-6y = -14

2x-4y =14

Adding 

-10y =0

y= 0

x=7

The two equations are consistent and unique solution x=7, y=0

Jan 20th, 2015

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