SOLUTION: Can you tell me if these systems are consistent, inconsistent, or dependent? 3x - 3y = -9 9x - 9y = -27 Please help. Ellen

Algebra ->  Linear-equations -> SOLUTION: Can you tell me if these systems are consistent, inconsistent, or dependent? 3x - 3y = -9 9x - 9y = -27 Please help. Ellen      Log On


   



Question 148976: Can you tell me if these systems are consistent, inconsistent, or dependent?
3x - 3y = -9
9x - 9y = -27
Please help.
Ellen

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
me if these systems are consistent, inconsistent, or dependent?
3x - 3y = -9
9x - 9y = -27
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Multiply thru the 1st equation by 3 to get:
9x - 9y = -27
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So you see the 2nd equation is simply a multiply of the 1st equation.
The system is said to be dependent.
Cheers,
Stan H.