Algebra Examples

$P = 21 + 2 w$

Step 1

Reorder $21$ and $2 w$ .

$P = 2 w + 21$

Step 2

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

$f (w) = 2 w + 21$