Solve for x
x = \frac{93}{4} = 23\frac{1}{4} = 23.25
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4x-12=81
Square both sides of the equation.
4x-12-\left(-12\right)=81-\left(-12\right)
Add 12 to both sides of the equation.
4x=81-\left(-12\right)
Subtracting -12 from itself leaves 0.
4x=93
Subtract -12 from 81.
\frac{4x}{4}=\frac{93}{4}
Divide both sides by 4.
x=\frac{93}{4}
Dividing by 4 undoes the multiplication by 4.
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