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

Given f(x)=2x+9, if f(x)=15, find x
asked 151k views
4 votes
Given f(x)=2x+9, if f(x)=15, find x

asked
User Tasheria
by
8.2k 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
answered
User Migdoel
by
8.0k points
7 votes

Answer:

x = 3 I think

Explanation:

h. mmm yess I think

answered
User Fbarber
by
8.2k points
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