-9-8x^2=-209

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Solution for -9-8x^2=-209 equation: 


Simplifying
-9 + -8x2 = -209

Solving
-9 + -8x2 = -209

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '9' to each side of the equation.
-9 + 9 + -8x2 = -209 + 9

Combine like terms: -9 + 9 = 0
0 + -8x2 = -209 + 9
-8x2 = -209 + 9

Combine like terms: -209 + 9 = -200
-8x2 = -200

Divide each side by '-8'.
x2 = 25

Simplifying
x2 = 25

Take the square root of each side:
x = {-5, 5}

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