Question 120754: Classify each system. Give the number of solutions.
{y=-x+5
{x+y=5
Answer by rapaljer(4671)   (Show Source):
You can put this solution on YOUR website! {y=-x+5
{x+y=5
In the first equation, add +X to each side, and you get x+y =5. This is exactly the same as the second equation, so the solution is the entire line. The system is said to be "dependent," and there are infinitely many solutions.
R^2
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