Question

Dados f(x)=3x-1 e f(g(x))=6x+8, determine g(x)=

Answer 1

f(x) = 3x - 1

f(g(x)) = 6x + 8

f(g(x)) = 3 * g(x) - 1

3 * g(x) - 1 = 6x + 8

3 * g(x) = 6x + 8 + 1

3 * g(x) = 6x + 9

g(x) = (6x + 9) : 3

g(x) = 2x + 3