Question

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

Answer 1

2(x-4)=20
2x-8=20
2x=20-8
X=12/2
X=6

Answer 2

Substitute for x.
g(20)= 2(20-4)
g(20)=32.
x=32.
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