Write as a Function of x x-y=3

$x - y = 3$

Step 1

Subtract $x$ from both sides of the equation.

$- y = 3 - x$

Step 2

Divide each term in $- y = 3 - x$ by $- 1$ and simplify.

Divide each term in $- y = 3 - x$ by $- 1$ .

$\frac{- y}{- 1} = \frac{3}{- 1} + \frac{- x}{- 1}$

Simplify the left side.

Dividing two negative values results in a positive value.

$\frac{y}{1} = \frac{3}{- 1} + \frac{- x}{- 1}$

Divide $y$ by $1$ .

$y = \frac{3}{- 1} + \frac{- x}{- 1}$

Simplify the right side.

Simplify each term.

Divide $3$ by $- 1$ .

$y = - 3 + \frac{- x}{- 1}$

Dividing two negative values results in a positive value.

$y = - 3 + \frac{x}{1}$

Divide $x$ by $1$ .

$y = - 3 + x$

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.

$f (x) = - 3 + x$

Write as a Function of x x-y=3

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