What does x equal? 3 over x plus x over x plus 1 is equal to 7 over x^2 plus x.

Rational Expressions and Equations
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

3/x+x/(x+1)=7/(x2+x).

(3x+3+x2)/(x2+x)=7/(x2+x),

x2+3x+3=7,

x2+3x-4=0=(x+4)(x-1) so x=1 or -4.

CHECK

3/1+1/(1+1)=3+½=7/2; 7/(x2+1)=7/2✔️

-¾+(-4)/(-3)=-¾+4/3=7/12; 7/(x2+x)=7/(16-4)=7/12✔️

by Top Rated User (1.2m points)

Related questions

1 answer
what does 1 over 4 plus 5 over 12 equal
asked Apr 3, 2015 in Other Math Topics by eddie | 577 views
2 answers
what is 2 over 3 plus 2 over 3 equal?
asked Feb 5, 2013 in Fraction Problems by anonymous | 612 views
2 answers
ten equal two plus x over five to the third power
asked Dec 12, 2011 in Algebra 1 Answers by anonymous | 1.4k views
1 answer
What does 7/8 plus 31/4 equal?
asked Apr 21, 2014 in Other Math Topics by Mathcrafter170 Level 1 User (120 points) | 1.3k views
1 answer
Why does -3 plus -3 equal -6?
asked Sep 2, 2014 in Other Math Topics by anonymous | 562 views
1 answer
What does nine plus negative six equal?
asked Oct 30, 2013 in order of operations by anonymous | 1.1k views
3 answers
what does a plus add a minus equal
asked Dec 9, 2012 in Algebra 2 Answers by anonymous | 871 views
1 answer
What does 5/6 minus 1/3 plus 2/5 divided by 2/3 equal?
asked Oct 14, 2012 in Algebra 1 Answers by anonymous | 755 views
1 answer
What does 5/6 minus 1/3 plus 2/5 divided by 2/3 equal?
asked Oct 14, 2012 in Algebra 1 Answers by anonymous | 763 views
1 answer
what does 3.8 plus 3.8 equal?
asked May 18, 2012 in Pre-Algebra Answers by anonymous | 707 views
0 answers
what does x-5 over 3xsquared + 2x +47 equal to
asked Mar 18, 2013 in Geometry Answers by anonymous | 624 views
1 answer
what does 21 over 5 equal.
asked Sep 18, 2012 in Algebra 2 Answers by anonymous | 748 views
1 answer
n over 5 + 10n = 51 what does n equal?
asked Mar 13, 2012 in Pre-Algebra Answers by anonymous | 1.6k views
1 answer
what does 3 over 12 equal
asked Feb 17, 2012 in Least Common Denominator by anonymous | 883 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. Solve 15 -1(12÷4+1)? (4)
  4. 8:4(5+2) (3)
  5. How can i represent 1/3; 3/3; 7/3; 10/3 and 15/3 on a number line? (1)

Most popular tags

87,516 questions
100,279 answers
2,420 comments
732,939 users