Solve for x
x=3
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4x-3=9
Square both sides of the equation.
4x-3-\left(-3\right)=9-\left(-3\right)
Add 3 to both sides of the equation.
4x=9-\left(-3\right)
Subtracting -3 from itself leaves 0.
4x=12
Subtract -3 from 9.
\frac{4x}{4}=\frac{12}{4}
Divide both sides by 4.
x=\frac{12}{4}
Dividing by 4 undoes the multiplication by 4.
x=3
Divide 12 by 4.
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