Solve 9x=4-y

$$9 x = 4 - y$$

Solve for x

$$x=\frac{4-y}{9}$$

Steps for Solving Linear Equation

The equation is in standard form.

$$9x=4-y$$

Divide both sides by 9.

$$\frac{9x}{9}=\frac{4-y}{9}$$

Dividing by 9 undoes the multiplication by 9.

$$x=\frac{4-y}{9}$$

Solve for y

$$y=4-9x$$

Steps for Solving Linear Equation

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

$$4-y=9x$$

Subtract 4 from both sides.

$$-y=9x-4$$

Divide both sides by -1.

$$\frac{-y}{-1}=\frac{9x-4}{-1}$$

Dividing by -1 undoes the multiplication by -1.

$$y=\frac{9x-4}{-1}$$

Divide 9x-4 by -1.

$$y=4-9x$$