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Verdich [7]
4 years ago
14

Evaluate f(x) = 2x - 7 when x = 4.

Mathematics
1 answer:
gavmur [86]4 years ago
7 0

Answer:

x =  \frac{11}{2}  \\

Step-by-step explanation:

f(x) = 2x - 7

when x = 4

It means that equate f(x) to the value of x that's 4 and solve for x

That's

f(x) = 4

We have

2x - 7 = 4

<u>Add 7 to both sides of the equation</u>

2x  + 7 - 7 = 4 + 7 \\ 2x = 11

<u>Divide both sides by 2</u>

\frac{2x}{2}  =  \frac{11}{2}  \\

We have the final answer as

x =  \frac{11}{2}  \\

Hope this helps you

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