Solve for y
y=\sqrt{55}-9\approx -1.583801513
y=-\left(\sqrt{55}+9\right)\approx -16.416198487
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y+9=\sqrt{55} y+9=-\sqrt{55}
Take the square root of both sides of the equation.
y+9-9=\sqrt{55}-9 y+9-9=-\sqrt{55}-9
Subtract 9 from both sides of the equation.
y=\sqrt{55}-9 y=-\sqrt{55}-9
Subtracting 9 from itself leaves 0.
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