Question

sendo f (x) = -6x +24 , qual o valor de x quando f (x) = -18 ?

Answer 1

Se $f (x) = -6x +24$, o valor de x para $f (x) = -18$ será:

$-6x + 24 = -18$
$-6x = -18- 24$
$-6x = -42$
$x = \frac{-42}{-6}$
$x=7$