X*y+20=5y

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Solution for X*y+20=5y equation: 



X*X+20=5X

We move all terms to the left:

X*X+20-(5X)=0

We add all the numbers together, and all the variables

-5X+X*X+20=0

Wy multiply elements

X^2-5X+20=0

a = 1; b = -5; c = +20;
Δ = b2-4ac
Δ = -52-4·1·20
Δ = -55
Delta is less than zero, so there is no solution for the equation

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