Solve for x
x=\sqrt{7}-2\approx 0.645751311
x=-\left(\sqrt{7}+2\right)\approx -4.645751311
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x+2=\sqrt{7} x+2=-\sqrt{7}
Take the square root of both sides of the equation.
x+2-2=\sqrt{7}-2 x+2-2=-\sqrt{7}-2
Subtract 2 from both sides of the equation.
x=\sqrt{7}-2 x=-\sqrt{7}-2
Subtracting 2 from itself leaves 0.
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