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anonymous
 5 years ago
Can someone please help? It's the last one i'm stuck on
How do you solve the following equation by Gaussian Elimination, then indicate if the system is inconsistent or has an infinite number of solution?
x + y + x = 0
x + y = 3
y + z = 1
anonymous
 5 years ago
Can someone please help? It's the last one i'm stuck on How do you solve the following equation by Gaussian Elimination, then indicate if the system is inconsistent or has an infinite number of solution? x + y + x = 0 x + y = 3 y + z = 1

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Given, x+x+y=0 or 2x+y=0 or 2x=y hence, x=y/2 In the second equation, by substitution, we get, y/2+y=3 Or, (y+2y)/2=3 Or, y=6 hence, x=6/2=3 Also given that y+z=1 Or, 6+z=1 Hence, z=16=5 Therefore, y=6, z=5, x=3
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