X(7-4x)=9

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Solution for X(7-4x)=9 equation: 



X(7-4X)=9

We move all terms to the left:

X(7-4X)-(9)=0

We add all the numbers together, and all the variables

X(-4X+7)-9=0

We multiply parentheses

-4X^2+7X-9=0

a = -4; b = 7; c = -9;
Δ = b2-4ac
Δ = 72-4·(-4)·(-9)
Δ = -95
Delta is less than zero, so there is no solution for the equation

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