Answer:
[tex]\boxed{x = 0}[/tex]
Step-by-step explanation:
[tex]3^{x + 1} - 3^x = 2[/tex]
[tex]3.3^x - 3^x = 2[/tex]
[tex](3 - 1)3^x = 2[/tex]
[tex]2.3^x = 2[/tex]
[tex]3^x = \frac{2}{2}[/tex]
[tex]3^x = 1[/tex]
[tex]3^x = 3^0[/tex]
[tex]x = 0[/tex]
the value of x is zero
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