Answer: 4 and 8
Step-by-step explanation:
1. 12+7x=40
7x=28
x=4
2. 6x-3=45
6x=48
x=8
Answer:
0
Step-by-step explanation:
Put -6 where x is and do the arithmetic.
f(-6) = 1/3 (-6 +6) = 1/3 (0)
f(-6) = 0
Answer: x = 19
Step-by-step explanation:
1: 12 (3-2) =x-7
2: 12 = x-7
3: 12+7 = (x-7) +7
4: 19 = x-7 +7
5: 19=x
6 x= 19
I really hope this is correct!!!
The composed fraction 
means that the input of 
is the ouput of 
.
So, the chain is
The domain of is composed by all inputs which are not zero, otherwise we would have a zero denominator.
So, since doesn't accept 0 as an input, and we want to feed it with , we conclude that can't be zero.
So, we have
Since
we have
Since these two points cases to vanish, they can't be accepted as inputs by .
