# How do you solve f + 2 = -4?

$f = - 6$
We want the $f$ to be alone, so we subtract $2$ from the left hand side of the equals sign, but for an equation to remain true, whatever we do to one side we have to do to the other, so we subtract 2 from both sides:
$f + \cancel{2} - \cancel{2} = - 4 - 2 = - 6$