Answer:
3
Step-by-step explanation:
20x+4-8=38+6x
Cancel out 6x
14x+4-8=38
14+4=46
14x=42
= 3
x=3
This is a contradiction
28
7x4
I'm not sure about this but will give it a try:
Let f(n) = 2xⁿ - 2
Then f(3) = 2x³ - 2
So, f(2) = 2x² - 2
