Solve for x
x = \frac{169}{4} = 42\frac{1}{4} = 42.25
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4x=169
Square both sides of the equation.
\frac{4x}{4}=\frac{169}{4}
Divide both sides by 4.
x=\frac{169}{4}
Dividing by 4 undoes the multiplication by 4.
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