(15-6)+(4-1)X2=n

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Solution for (15-6)+(4-1)X2=n equation: 



(15-6)+(4-1)X2=X

We move all terms to the left:

(15-6)+(4-1)X2-(X)=0

We add all the numbers together, and all the variables

3X2-X+9=0

We add all the numbers together, and all the variables

3X^2-1X+9=0

a = 3; b = -1; c = +9;
Δ = b2-4ac
Δ = -12-4·3·9
Δ = -107
Delta is less than zero, so there is no solution for the equation

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