Question 811950
revised
{{{1 + 2^(x+1) = 27}}}
=

Subtract 1 from each side.
{{{2^(x+1) = 26}}}
So
{{{log2(26)=x+1}}}
This can be computed as {{{log(26)/log(2)=x+1}}}
x+1 = 1.414973/0.3010 = 4.70044
This makes sense because 2^4 = 16 and 2^5 = 32
and x = 3.70044