3 years ago

If f(x)=x-5, find x when f(x)=15

Mathematics

1 answer:

Leya [2.2K]3 years ago

5 0

Answer:

x = 20

Step-by-step explanation:

we are given the value of f(x), replace it in the first equation

15 = x - 5

solve for x by adding 5 on both sides

15 + 5 = x

20 = x or x = 20

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