SOLUTION: Find a value of n so the linear system has an infinite number of solutions x-y=4 -2x+2y=n

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Question 587413: Find a value of n so the linear system has an infinite number of solutions
x-y=4
-2x+2y=n
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find a value of n so the linear system has an infinite number of solutions
x-y=4
-2x+2y=n
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The bottom eqution must be a multiple of the 1st equation.
Multiply the 1st equation by -2 to get:
-2x + 2y = -8
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Ans: n = -8
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Cheers,
Stan H.