Question

question 2-8
look at the linear function.
$f(x) = \frac{2}{3}x - 5$
if $f(x) = 7$, what is the value of $x$? type the value in the box.
$x = \square$

Explanation:

Step1: Substitute $f(x)=7$

$7 = \frac{2}{3}x - 5$

Step2: Isolate the $x$-term

$7 + 5 = \frac{2}{3}x$
$12 = \frac{2}{3}x$

Step3: Solve for $x$

$x = 12 \times \frac{3}{2}$
$x = 18$

Answer:

$x = 18$