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Simplifying
-9x2 = -207
Solving
-9x2 = -207
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '-9'.
x2 = 23
Simplifying
x2 = 23
Take the square root of each side:
x = {-4.795831523, 4.795831523}
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