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Given f(x)=2x+9, if f(x)=15, find x
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4 votes
Given f(x)=2x+9, if f(x)=15, find x

User Tasheria
by
8.1k points

2 Answers

1 vote
Answer:
f(x)=39
Expiation:
f(x)=2x+9,f(x)=15 you substitute the x for the 15.
f(15)=2(15)+9
f(15)=30+9
f(15)=39
User Migdoel
by
7.9k points
7 votes

Answer:

x = 3 I think

Explanation:

h. mmm yess I think

User Fbarber
by
8.1k points
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