Problem Solving (PS) | Re: If x/(x+y) = 6 then y/(y+x)

Manipulate equation 1, to get parts of 2 [y/(y+x)]

x/(x+y) = 6 this is equivalent to x+y = x/6 (A)
Now to get the numerator of equation 2, here "y" from the equation before
y= x/6 - x
simplified y = -5x/6 (B)

SUB (A) and (B) into original equation 2
(-5x/6)(6/x)
Therefore,
y/(x+y) = -5

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