A(x) = 3x - 12
b(x) = x - 9
a(b(x)) = a(x - 9) = 3(x - 9) - 12 = 3x - 27 - 12 = 3x - 39
a(b(x)) = 3x - 39
Do you have answer choices? if not that’s okay but I did do the work and would be able to reply with the picture!
Answer:
Step-by-step explanation:
We know:
We have
Use 
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Answer:
LN = 5x + 9
Step-by-step explanation:
LN = x + 9 + 4x
LN = 5x + 9
