Solve -1=-Delta/4a

$$- 1 = - \frac { \Delta } { 4 a }$$

Solve for a

$$a=\frac{\Delta }{4}$$

$$\Delta \neq 0$$

Steps for Solving Linear Equation

Variable a cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 4a.

$$-4a=-\Delta$$

Divide both sides by -4.

$$\frac{-4a}{-4}=-\frac{\Delta }{-4}$$

Dividing by -4 undoes the multiplication by -4.

$$a=-\frac{\Delta }{-4}$$

Divide -\Delta by -4.

$$a=\frac{\Delta }{4}$$

Variable a cannot be equal to 0.

$$a=\frac{\Delta }{4}\text{, }a\neq 0$$

Solve for Δ

$$\Delta =4a$$

$$a\neq 0$$

Steps for Solving Linear Equation

Multiply both sides of the equation by 4a.

$$-4a=-\Delta$$

Swap sides so that all variable terms are on the left hand side.

$$-\Delta =-4a$$

Divide both sides by -1.

$$\frac{-\Delta }{-1}=-\frac{4a}{-1}$$

Dividing by -1 undoes the multiplication by -1.

$$\Delta =-\frac{4a}{-1}$$

Divide -4a by -1.

$$\Delta =4a$$