SOLUTION: Help me please. Solve log (x + 11) – log x = 3. thank you

Algebra ->  Algebra  -> Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Help me please. Solve log (x + 11) – log x = 3. thank you      Log On

Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

   


Question 73838: Help me please.
Solve log (x + 11) – log x = 3.
thank you

Answer by Earlsdon(6287) About Me  (Show Source):
You can put this solution on YOUR website!
Solve:
Log%28x%2B11%29+-+Log%28x%29+=+3 Apply the quotient rule for lagarithms: Log%28M%29-Log%28N%29+=+Log%28M%2FN%29
Log%28%28x%2B11%29%2Fx%29+=+3 Rewrite this in exponential form.
10%5E3+=+%28x%2B11%29%2Fx Simplify and solve for x.
1000+=+%28x%2B11%29%2Fx Multiply both sides by x.
1000x+=+x%2B11 Subtract x from both sides.
999x+=+11 Divide both sides by 999.
x+=+11%2F999 = 0.011011...This is a repeating decimal.