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\sqrt{2x-3}-7-\left(-7\right)=-\left(-7\right)
Add 7 to both sides of the equation.
\sqrt{2x-3}=-\left(-7\right)
Subtracting -7 from itself leaves 0.
\sqrt{2x-3}=7
Subtract -7 from 0.
2x-3=49
Square both sides of the equation.
2x-3-\left(-3\right)=49-\left(-3\right)
Add 3 to both sides of the equation.
2x=49-\left(-3\right)
Subtracting -3 from itself leaves 0.
2x=52
Subtract -3 from 49.
\frac{2x}{2}=\frac{52}{2}
Divide both sides by 2.
x=\frac{52}{2}
Dividing by 2 undoes the multiplication by 2.
x=26
Divide 52 by 2.