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11. If f(x) = 2x – 7, then for what value of x is f(x) = -4 3
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4 votes
4 votes
11. If f(x) = 2x – 7, then for what value of x is f(x) = -4
3

User Andrei Nicusan
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2 Answers

14 votes
14 votes
The answer is -15. The working is in the image.
User Mustafa Salih ASLIM
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3.1k points
14 votes
14 votes
F(x) = 2x-7
F(x) = -4
So we know that F(x) and f(x) are equal to each other… so :
-4= 2x-7
3=2x
Divide by 2
X= 3/2
User SeriyPS
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3.4k points
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