Question

Solve : If g(x) = 2(x − 4), find the value of x if g(x) = 20.

Answer 1

just solve for x in

2(x-4) = 20

does that help?

Answer 2

Uh no it dosent...

Answer 3

substitute g(x) in the first equation by what it is equal to.
g(x)=20

Answer 4

is the answer 10?

Answer 5

x-4=10
but the final answer is not 10

Answer 6

hmmmmmmmmm

Answer 7

12?

Answer 8

\[f(x)=2(x-4)\]
\[f(x)=20\]
substitue f(x) with 20 in the first equation
\[20=2(x-4)\]
divide both sides by 2
\[\frac{ 20 }{ 2 }=x-4\]
add four to each side
\[10+4=x\]

Answer 9

oh so it was 14?

Answer 10

do you understand how we got that?

Answer 11

a little

Answer 12

good luck