Question

Given the function f(x) = 2(x + 8), find x if f(x) = 12

Answer 1

You are given with f(x) = 12

So just plug in the value of f(x)

\[2( x + 8) = 12\]

Now divide by 2 both the sides and tell me what did you get...

Answer 2

i got 40

Answer 3

wait... :P never mind i did it wrong

Answer 4

no..

It is not the values of x it is value of f(x) be careful..

Answer 5

See the difference:

f(x) = 12 Here the value of function itself is 12

f(12) Here the value of x is 12..

Answer 6

Are you solving it or not @vetdoc

Answer 7

would i subtract the12 by 8?

Answer 8

Firstly divide by 2 both the sides..

Answer 9

Show your steps how are you doing it and then I can tell what step is to make...

Answer 10

2(x+8)=12
-- --
2 2
x+8=6
-8 -8
x=-2

Answer 11

Yes you are absolutely right..

Cheers...!