Question

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

Answer 1

Answer: -5

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

Answer 2

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