Solve for x
x=5
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2x-1=9
Square both sides of the equation.
2x-1-\left(-1\right)=9-\left(-1\right)
Add 1 to both sides of the equation.
2x=9-\left(-1\right)
Subtracting -1 from itself leaves 0.
2x=10
Subtract -1 from 9.
\frac{2x}{2}=\frac{10}{2}
Divide both sides by 2.
x=\frac{10}{2}
Dividing by 2 undoes the multiplication by 2.
x=5
Divide 10 by 2.
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