Write as a Function of x -x+2y=4

$- x + 2 y = 4$

Step 1

Add $x$ to both sides of the equation.

$2 y = 4 + x$

Step 2

Divide each term in $2 y = 4 + x$ by $2$ and simplify.

Divide each term in $2 y = 4 + x$ by $2$ .

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

Simplify the left side.

Cancel the common factor of $2$ .

Cancel the common factor.

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

Divide $y$ by $1$ .

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

Simplify the right side.

Divide $4$ by $2$ .

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

Step 3

To rewrite as a function of $x$ , write the equation so that $y$ is by itself on one side of the equal sign and an expression involving only $x$ is on the other side.

$f (x) = 2 + \frac{x}{2}$

Write as a Function of x -x+2y=4

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