Math

Determin x if f(g(x))=0 for the following

f(x) = 3x-2

g(x) =5x+5

asked by Isaac
  1. 3(5x+5) - 2 = 0
    15x + 15 - 2 = 0
    15x = -13
    x = -13/15

    check:
    g(-13/15) = 5(-13/15) + 5
    = 2/3

    f(2/3) = 3(2/3) - 2
    = 2-2 = 0

    my answer is correct

    posted by Reiny

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