How do you solve 27^(x-3)=1/927x−3=19?
1 Answer
Nov 29, 2015
Express as powers of
Explanation:
If
So:
3^(3(x-3)) = (3^3)^(x-3) = 27^(x-3) = 1/9 = 3^-233(x−3)=(33)x−3=27x−3=19=3−2
Since
3(x-3) = -2
Hence:
3x = -2+9 = 7
So