Respuesta :
Answer:
-5
Step-by-step explanation:
f(x)=x-8
f(x)=-13
We know that f(x)=y for some number y so we have x-8=-13.
add 8 to both sides to obtain
x=-5
Answer:
-5
Step-by-step explanation:
f(x)=x-8
f(x)=-13
We know that f(x)=y for some number y so we have x-8=-13.
add 8 to both sides to obtain
x=-5