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

User How Chen
by
2.7k points

2 Answers

14 votes
14 votes
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 Martyn Davies
by
3.2k points
20 votes
20 votes

Answer:

x = 3 I think

Explanation:

h. mmm yess I think

User Talpaz
by
2.8k points
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