SOLUTION: 0.90=29+49log(x+1) please help me solve I dont know how to start and I need the answer.

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: 0.90=29+49log(x+1) please help me solve I dont know how to start and I need the answer.      Log On


   

Question 1060037: 0.90=29+49log(x+1) please help me solve I dont know how to start and I need the answer.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+.9+=+29+%2B+49%2Alog%28%28+x%2B1+%29%29+
+-28.1+=+49%2Alog%28%28+x%2B1+%29%29+
+-.57347+=+log%28%28++x%2B1+%29%29+
I assume that the base of the log is +10+,
so the other way to write this is:
+10%5E%28-.57347+%29+=+x+%2B+1+
+.26701+=+x+%2B+1+
+x+=+-.73299+
---------------------
check answer:
+.9+=+29+%2B+49%2Alog%28%28+-.73299+%2B+1+%29%29+
+.9+=+29+%2B+49%2Alog%28%28+.26701+%29%29+
+-28.1+=+49%2A%28-.57347+%29+
+-28.1+=+-28.10015+
Looks close enough