SOLUTION: Determine if the system is dependent and consistent, inconsistent or dependent. If the system is independent or consistent, solve using either substitution or elimination method.

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Question 917718: Determine if the system is dependent and consistent, inconsistent or dependent. If the system is independent or consistent, solve using either substitution or elimination method.
{ x+y = 8
x-y = 4

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Add the equations.
x%2By%2Bx-y=8%2B4
2x=12
x=6
Then,
6%2By=8
y=2
Independent.