3 years ago

F(x) = -2x + 9, find x if f(x) = 23

Mathematics

1 answer:

JulijaS [17]3 years ago

7 0

Answer:

x = -7

Step-by-step explanation:

f(x) = -2x + 9

f(x) = 23

therefore, f(x) =

-2x + 9 = 23

-2x = 23 - 9

-2x = 14

-x = 14 ÷ 2

-x = 7

x = -7

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