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2-\sqrt{3x}=2\left(-2\right)
Multiply both sides by -2.
2-\sqrt{3x}=-4
Multiply 2 and -2 to get -4.
-\sqrt{3x}=-4-2
Subtract 2 from both sides.
-\sqrt{3x}=-6
Subtract 2 from -4 to get -6.
\sqrt{3x}=\frac{-6}{-1}
Divide both sides by -1.
\sqrt{3x}=6
Fraction \frac{-6}{-1} can be simplified to 6 by removing the negative sign from both the numerator and the denominator.
3x=36
Square both sides of the equation.
\frac{3x}{3}=\frac{36}{3}
Divide both sides by 3.
x=\frac{36}{3}
Dividing by 3 undoes the multiplication by 3.
x=12
Divide 36 by 3.