Solve for x
x=\sqrt{817}-7\approx 21.583211856
x=-\left(\sqrt{817}+7\right)\approx -35.583211856
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x+7=\sqrt{817} x+7=-\sqrt{817}
Take the square root of both sides of the equation.
x+7-7=\sqrt{817}-7 x+7-7=-\sqrt{817}-7
Subtract 7 from both sides of the equation.
x=\sqrt{817}-7 x=-\sqrt{817}-7
Subtracting 7 from itself leaves 0.
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