Solve 4a-y=0

$$4 a - y = 0$$

Solve for a

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

Steps for Solving Linear Equation

Add y to both sides. Anything plus zero gives itself.

$$4a=y$$

Divide both sides by 4.

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

Dividing by 4 undoes the multiplication by 4.

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

Solve for y

$$y=4a$$

Steps for Solving Linear Equation

Subtract 4a from both sides. Anything subtracted from zero gives its negation.

$$-y=-4a$$

Divide both sides by -1.

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

Dividing by -1 undoes the multiplication by -1.

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

Divide -4a by -1.

$$y=4a$$