Respuesta :
Answer:
-10
Step-by-step explanation:
f(x)=-x-4
f(x)=6
-------------
-x-4=6
-x=6+4
-x=10
x=-10
Answer:
[tex]\displaystyle -10 = x[/tex]
Step-by-step explanation:
6 = −x - 4
+ 4 + 4
_________
[tex]\displaystyle 10 = -x \\ \\ -10 = x[/tex]
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