Solve Using the Quadratic Formula 12-4x=0

$12 - 4 x = 0$

Subtract $12$ from both sides of the equation.

$- 4 x = - 12$

Divide each term in $- 4 x = - 12$ by $- 4$ and simplify.

Divide each term in $- 4 x = - 12$ by $- 4$ .

$\frac{- 4 x}{- 4} = \frac{- 12}{- 4}$

Simplify the left side.

Cancel the common factor of $- 4$ .

Cancel the common factor.

$\frac{- 4 x}{- 4} = \frac{- 12}{- 4}$

Divide $x$ by $1$ .

$x = \frac{- 12}{- 4}$

Simplify the right side.

Divide $- 12$ by $- 4$ .

$x = 3$