Solve for x
x = \frac{28}{3} = 9\frac{1}{3} \approx 9.333333333
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9x-4=80
Square both sides of the equation.
9x-4-\left(-4\right)=80-\left(-4\right)
Add 4 to both sides of the equation.
9x=80-\left(-4\right)
Subtracting -4 from itself leaves 0.
9x=84
Subtract -4 from 80.
\frac{9x}{9}=\frac{84}{9}
Divide both sides by 9.
x=\frac{84}{9}
Dividing by 9 undoes the multiplication by 9.
x=\frac{28}{3}
Reduce the fraction \frac{84}{9} to lowest terms by extracting and canceling out 3.
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