SOLUTION: what is x = to in the equation z = (x-y)/x

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Question 777963: what is x = to in the equation z = (x-y)/x
Found 2 solutions by Alan3354, sofiyac:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
what is x = to in the equation z = (x-y)/x
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z = (x-y)/x
zx = x-y
zx - x = -y
x - xz = y
x*(1 - z) = y
x = y/(1 - z)

Answer by sofiyac(983) About Me  (Show Source):
You can put this solution on YOUR website!
z=x^2-yx
subtract z from each side
x^2-yx-z=0 now use the quadratic formula
for equation in the form ax^2+bx+c=0
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
so we have
x+=+%28y+%2B-+sqrt%28+%28-y%29%5E2-4%2A1%2A%28-z%29+%29%29%2F%282%2A1%29+
x+=+%28y+%2B-+sqrt%28+y%5E2%2B4z+%29%29%2F%282%29+