Heeeeelp 3^x - 3^(x+3) = -78

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To solve the equation 3^x - 3^(x+3) = -78, we can rewrite the term 3^(x+3) as 3^x 3^3 = 27 3^x.

So now, the equation becomes:
3^x - 273^x = -78
Combining like terms:
-263^x = -78

Divide both sides by -26:
3^x = 3

Since 3^1 = 3, x = 1 is the solution to the equation 3^x - 3^(x+3) = -78.