Solve for x
x=2\sqrt{2}-12\approx -9.171572875
x=-2\sqrt{2}-12\approx -14.828427125
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x+12=2\sqrt{2} x+12=-2\sqrt{2}
Take the square root of both sides of the equation.
x+12-12=2\sqrt{2}-12 x+12-12=-2\sqrt{2}-12
Subtract 12 from both sides of the equation.
x=2\sqrt{2}-12 x=-2\sqrt{2}-12
Subtracting 12 from itself leaves 0.
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