Answer:
Step-by-step explanation:

Answer:
A, 8
Step-by-step explanation:
Use the equation 15+4x=47
Subtract 15 from both sides to get
4x=32
divide to get 8
x=8
The answer is B because 20/4 equals 5 then 5-4 equals 1. So therefore your answer is B)1
I am guessing right now, but here it is
x=6x+x-2x
The first one and the third one represents a function beside each input has one output.