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4 years ago

Given f(x)=9-2x, if f(x)=19, find the value of x. Can some one help please?

Mathematics

2 answers:

ruslelena [56]4 years ago

8 0

Answer:

-5=x

Step-by-step explanation:

f(x)=9-2x when f(x)=19

19=9-2x

Subtract 9 from both sides

10= -2x

Divide both sides by -2 to isolate the variable

-5=x

eimsori [14]4 years ago

6 0

Answer: -5

Step-by-step explanation: 19 -9 = 10. 10/-2 = -5

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