log(3+x) - log(x-4) = log2

algebra problem
in Algebra 1 Answers by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

 

log(3+x) - log(x-4) = log2

log (3+x) /(x -4)  = log 2         [ logm - log n = log m/n    ]

remove log sign both sides

(3+x ) / (x -4) = 2

3+ x = 2 * (x - 4)

3 + x = 2x - 8

3 + 8 = 2x -x

11 = x

x = 11

by Level 4 User (5.5k points)

Related questions

1 answer
log2 +log(3x-1)=5
asked Apr 1, 2013 in Algebra 2 Answers by therese Level 1 User (120 points) | 902 views
1 answer
log(75/16)-log(5/9)+log(32/253)=log2
asked Oct 14, 2012 in Calculus Answers by anonymous | 990 views
1 answer
n=log2/log(1.001) how do i answer this
asked Sep 9, 2012 in Algebra 1 Answers by anonymous | 891 views
1 answer
solve 2(log2^5x+2)=5
asked Jun 23, 2014 in Other Math Topics by anonymous | 839 views
1 answer
log2 (x) +log2(y) =4, what is xy=?
asked Mar 5, 2014 in Trigonometry Answers by amandawho Level 1 User (620 points) | 3.6k views
1 answer
log2(X+2)-3*log8(x+3)=2
asked Feb 25, 2014 in Algebra 1 Answers by Lama | 715 views
1 answer
Simplify the logarithm log2 (64)
asked Dec 22, 2013 in Algebra 1 Answers by anonymous | 5.6k views
1 answer
2logy=0.5log16-log2+2log3
asked Oct 1, 2013 in Other Math Topics by anonymous | 2.1k views
1 answer
log2+16log16/15+12log25/24+7log81/80
asked Sep 11, 2013 in Algebra 2 Answers by faisal khan | 709 views
1 answer
Log2(x3+5)=5
asked Aug 13, 2013 in Other Math Topics by emmanuel chanda musonda | 469 views
2 answers
solve log2(x-1)=4
asked Jun 20, 2013 in Algebra 2 Answers by anonymous | 760 views
1 answer
log2 x-log2 9=2
asked Jun 2, 2013 in Algebra 2 Answers by anonymous | 1.1k views
1 answer
solution 4 log2 (4x+2) +5 log2 (5x+6)
asked May 28, 2013 in Calculus Answers by anonymous | 568 views
1 answer
log2 9+ log2 a=log2 11
asked May 25, 2013 in Algebra 2 Answers by anonymous | 2.0k views
1 answer
log2 9+ log2 a=log2 11
asked May 25, 2013 in Algebra 2 Answers by anonymous | 584 views
1 answer
log2 16^5 .
asked Apr 30, 2013 in Algebra 2 Answers by anonymous | 1.5k views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!

Most popular questions within the last 3000 days

  1. 50+50-25X0+2+2= (19)
  2. it takes 10 road workers 5 days to complete a road repair when working 2 hours a day.Working at the same pace,how many days will it take 2 people working 5 hours a day to finish it? (3)
  3. complete the following. 825 use each digit once .make the two smallest 3 digit numbers and two largest 3-digit number (2)
  4. Solve 15 -1(12÷4+1)? (4)
  5. 8:4(5+2) (3)

Most popular tags

87,542 questions
99,771 answers
2,417 comments
505,206 users