Solve for w
w=\frac{-x^{2}-9}{10}
Solve for x (complex solution)
x=-\sqrt{-10w-9}
x=\sqrt{-10w-9}
Solve for x
x=\sqrt{-10w-9}
x=-\sqrt{-10w-9}\text{, }w\leq -\frac{9}{10}
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10w+9=-x^{2}
Subtract x^{2} from both sides. Anything subtracted from zero gives its negation.
10w=-x^{2}-9
Subtract 9 from both sides.
\frac{10w}{10}=\frac{-x^{2}-9}{10}
Divide both sides by 10.
w=\frac{-x^{2}-9}{10}
Dividing by 10 undoes the multiplication by 10.
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