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The ratio (y+x) : (y-x) is equivalent to k : 1.Find an expression for y in terms of k and x.

 Oct 13, 2020
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(y+x) / (y-x) = k/1

 

y+x = ky - kx

y-ky = -kx-x

y (1-k) = x (-k-1)

y = x (-k-1)/(1-k)

 
 Oct 13, 2020

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