Respuesta :
Answer:
2 =x
Step-by-step explanation:
f(x) = 9 - 4x
Let f(x) = 1
1 = 9 -4x
Subtract 9 from each side
1-9 = 9-4x-9
-8 = -4x
Divide by -4
-8/-4 = -4x/-4
2 =x
Answer:
x = 2
Step-by-step explanation:
f(x) = 9 - 4x
1 = 9 - 4x
~Subtract 9 to both sides
-8 = -4x
~Divide -4 to both sides
Best of Luck!