Solve x=4-1/2y

$$x = 4 - \frac { 1 } { 2 } y$$

Solve for y

$$y=8-2x$$

Steps for Solving Linear Equation

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

$$4-\frac{1}{2}y=x$$

Subtract 4 from both sides.

$$-\frac{1}{2}y=x-4$$

Multiply both sides by -2.

$$\frac{-\frac{1}{2}y}{-\frac{1}{2}}=\frac{x-4}{-\frac{1}{2}}$$

Dividing by -\frac{1}{2} undoes the multiplication by -\frac{1}{2}.

$$y=\frac{x-4}{-\frac{1}{2}}$$

Divide x-4 by -\frac{1}{2} by multiplying x-4 by the reciprocal of -\frac{1}{2}.

$$y=8-2x$$

Solve for x

$$x=-\frac{y}{2}+4$$