y-y(2-y)=-18

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Solution for y-y(2-y)=-18 equation: 



y-y(2-y)=-18

We move all terms to the left:

y-y(2-y)-(-18)=0

We add all the numbers together, and all the variables

y-y(-1y+2)-(-18)=0

We add all the numbers together, and all the variables

y-y(-1y+2)+18=0

We multiply parentheses

1y^2+y-2y+18=0

We add all the numbers together, and all the variables

y^2-1y+18=0

a = 1; b = -1; c = +18;
Δ = b2-4ac
Δ = -12-4·1·18
Δ = -71
Delta is less than zero, so there is no solution for the equation

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