Answer:
The value of x is \(14\)
Step-by-step explanation:
we have
\(g(x)=2(x-4)\) ------> equation A
In this problem we have
\(g(x)=20\)
Substitute the value of g(x) in the equation A and solve for x
\(20=2(x-4)\)
Divide by \(2\) both sides
\(20/2=2(x-4)/2\)
\(10=(x-4)\)
Adds \(4\) both sides
\(10+4=(x-4)+4\)
\(x=14\)