Question

ex. 4: given $f(x) = -x + 2$, find $x$ if $f(x) = 6$

Explanation:

Step1: Set function equal to 6

$6 = -x + 2$

Step2: Subtract 2 from both sides

$6 - 2 = -x$
$4 = -x$

Step3: Solve for x by multiplying by -1

$x = -4$

Answer:

$x = -4$