Solve x+4-y=0

$$x + 4 - y = 0$$

Solve for x

$$x=y-4$$

Solution Steps

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

$$x-y=-4$$

Add y to both sides.

$$x=-4+y$$

Solve for y

$$y=x+4$$

Steps for Solving Linear Equation

Subtract x from both sides. Anything subtracted from zero gives its negation.

$$4-y=-x$$

Subtract 4 from both sides.

$$-y=-x-4$$

Divide both sides by -1.

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

Dividing by -1 undoes the multiplication by -1.

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

Divide -x-4 by -1.

$$y=x+4$$