Examples

$x = y + 2$

Step 1

Rewrite the equation as $y + 2 = x$ .

$y + 2 = x$

Step 2

Subtract $2$ from both sides of the equation.

$y = x - 2$

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.

$f (x) = x - 2$

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