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

User Gammapoint
by
7.0k points

1 Answer

5 votes

Answer: x = 3

Explanation:

We will create an equation based on the given information and the given function.

Equation given that f(x) = 2x + 9 and f(x) = 15.

15 = 2x + 9

Subtract 9 from both sides of the equation.

6 = 2x

Divide both sides of the equation by 2.

3 = x

User Tez
by
7.6k points
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