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\sqrt{2x}-2-\left(-2\right)=6-\left(-2\right)
Add 2 to both sides of the equation.
\sqrt{2x}=6-\left(-2\right)
Subtracting -2 from itself leaves 0.
\sqrt{2x}=8
Subtract -2 from 6.
2x=64
Square both sides of the equation.
\frac{2x}{2}=\frac{64}{2}
Divide both sides by 2.
x=\frac{64}{2}
Dividing by 2 undoes the multiplication by 2.
x=32
Divide 64 by 2.