Question

Given f (x) = 3x - 8 find x if f(x) = -14​

Answer 1

Answer:

$x=-2$

Step-by-step explanation:

So we have the function:

$f(x)=3x-8$

And we want to solve for x if f(x) is -14.

So, substitute -14 for f(x):

$-14=3x-8$

Add 8 to both sides:

$-6=3x$

Divide both sides by 3:

$x=-2$

And we're done!

Answer 2

Answer:

The value of x is -2 .

Step-by-step explanation:

You have to solve it by doing comparison :

$f(x) = 3x - 8$

$f(x) = - 14$

$3x - 8 = - 14$

$3x = - 14 + 8$

$3x = - 6$

$x = - 6 \div 3$

$x = - 2$