-9=7x^2-x

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Solution for -9=7x^2-x equation: 



-9=7x^2-x

We move all terms to the left:

-9-(7x^2-x)=0

We get rid of parentheses

-7x^2+x-9=0

a = -7; b = 1; c = -9;
Δ = b2-4ac
Δ = 12-4·(-7)·(-9)
Δ = -251
Delta is less than zero, so there is no solution for the equation

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