Question 356553: Solve the system algebraically:
x-2y=1
y= sq root of (x-1)
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Solve the system algebraically:
x-2y=1
x = 2y+1
y= sq root of (x-1)
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Substitute for "x" and solve for "y":
y = sqrt(2y+1-1)
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y = sqrt(2y)
y^2 = 4y
y^2-4y = 0
y(y-4) = 0
y = 0 or y = 4
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If y = 0, x = 2y+1 = 1
If y = 4, x = 2y+1 = 9
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Cheers,
Stan H.
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