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2x-2\sqrt{5}=\sqrt{500}
Use the distributive property to multiply 2 by x-\sqrt{5}.
2x-2\sqrt{5}=10\sqrt{5}
Factor 500=10^{2}\times 5. Rewrite the square root of the product \sqrt{10^{2}\times 5} as the product of square roots \sqrt{10^{2}}\sqrt{5}. Take the square root of 10^{2}.
2x=10\sqrt{5}+2\sqrt{5}
Add 2\sqrt{5} to both sides.
2x=12\sqrt{5}
Combine 10\sqrt{5} and 2\sqrt{5} to get 12\sqrt{5}.
\frac{2x}{2}=\frac{12\sqrt{5}}{2}
Divide both sides by 2.
x=\frac{12\sqrt{5}}{2}
Dividing by 2 undoes the multiplication by 2.
x=6\sqrt{5}
Divide 12\sqrt{5} by 2.