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andre [41]
3 years ago
5

F(x) = 10x - 15. What value of x makes f(x) = 75?

Mathematics
2 answers:
Tomtit [17]3 years ago
6 0

Answer:

x=9

Step-by-step explanation:

Set the function equal to 75 and solve for x.

75=10x-15

add 15 to each side

90=10x

divide each side by 10 to isolate x

9=x or x=9

likoan [24]3 years ago
3 0

Answer:

x = 9

Step-by-step explanation:

f(x) = 10x - 15

f(x) = 75

Plug in 75 for f(x)

75 = 10x - 15

add 15 from either side

90 = 10x

divide either side by 10

9 = x

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