X(9-x)=70

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Solution for X(9-x)=70 equation: 



X(9-X)=70

We move all terms to the left:

X(9-X)-(70)=0

We add all the numbers together, and all the variables

X(-1X+9)-70=0

We multiply parentheses

-1X^2+9X-70=0

a = -1; b = 9; c = -70;
Δ = b2-4ac
Δ = 92-4·(-1)·(-70)
Δ = -199
Delta is less than zero, so there is no solution for the equation

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