Answer:
[tex]4^{x}[/tex] = [tex]4^{1}[/tex]
Step-by-step explanation:
[tex]4^{x}[/tex] - 3 = 1
[tex]4^{x}[/tex] - 3 + 3 = 1 + 3
[tex]4^{x}[/tex] = 4
Same base (4).