Solve for x
x=34
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2x-4=64
Square both sides of the equation.
2x-4-\left(-4\right)=64-\left(-4\right)
Add 4 to both sides of the equation.
2x=64-\left(-4\right)
Subtracting -4 from itself leaves 0.
2x=68
Subtract -4 from 64.
\frac{2x}{2}=\frac{68}{2}
Divide both sides by 2.
x=\frac{68}{2}
Dividing by 2 undoes the multiplication by 2.
x=34
Divide 68 by 2.
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