Posted by Amber on Sunday, May 3, 2009 at 12:30am.
Been trying to solve this equation and I keep getting 3...any advice would be appreciated
log2 (x+5)=4+log2 (x1)

Pre Cal  drwls, Sunday, May 3, 2009 at 12:42am
log2[(x+5)/(x1)] = 4
2^4 = 16 = (x+5)/(x1)
16x  16 = x + 5
15x = 21
x = 7/5