SOLUTION: Hello, Im having a tough time trying to figure out what to do with (-2h). I know I have to subtract 40 from both sides but not sure how to proceed from there. Thank you in advance

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Hello, Im having a tough time trying to figure out what to do with (-2h). I know I have to subtract 40 from both sides but not sure how to proceed from there. Thank you in advance       Log On


   

Question 846558: Hello, Im having a tough time trying to figure out what to do with (-2h). I know I have to subtract 40 from both sides but not sure how to proceed from there. Thank you in advance
log4 (-2h) + 40 =47
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

log%284%2C%28-2h%29%29+=+7

 4^7 = -2h

16384 = -2h

-8192 = h



   Applied