7n - 20 = 9(4n + 1)

7n - 20= 9(4n + 1)
in Algebra 2 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

Open the brackets, multiplying everything inside by 9: 7n-20=36n+9. Subtract 7n from each side: -20=29n+9. Now subtract 9 from each side: -29=29n. Divide each side by 29: -1=n, the same as n=-1, which is the answer.

by Top Rated User (1.2m points)

Related questions

1 answer
lcm of 20 and 38
asked Sep 14, 2014 in Statistics Answers by anonymous | 623 views
0 answers
out theorem of parallelogram of class 9
asked Mar 7, 2014 in Geometry Answers by anonymous | 628 views
2 answers
23.1+-9.81
asked Sep 2, 2013 in Algebra 1 Answers by magen | 1.8k views
1 answer
(81)^n*3^n-(3)^4^n^1(243)/(9^2^n)(3^3)
asked Jul 27, 2013 in Other Math Topics by Anila | 1.0k views
1 answer
Which relation is a function
asked Feb 5, 2019 in Pre-Algebra Answers by anonymous | 347 views
1 answer
-5 (4x + 6) < -18 + 6 + 4x
asked Sep 21, 2017 in Pre-Algebra Answers by anonymous | 422 views
1 answer
-2/3 × (-2)
asked Aug 26, 2016 in Algebra 1 Answers by anonymous | 841 views
1 answer
slope of (2,3) and (3,1)
asked Nov 7, 2014 in Algebra 1 Answers by anonymous | 705 views
1 answer
What's 27 square rooted simplified
asked May 29, 2014 in Algebra 1 Answers by Juju | 781 views
1 answer
Which ordered pair is on the graph of the equation 3x + 7y = 11?
asked Jan 16, 2014 in Algebra 1 Answers by Brianahall Level 1 User (120 points) | 1.6k views
1 answer
how do i evaulate my expression 11-6xforx=8andx=2
asked Aug 23, 2013 in Algebra 1 Answers by anonymous | 679 views
2 answers
x:19 = 2:38
asked Aug 12, 2013 in Other Math Topics by anonymous | 849 views
1 answer
Speed distance and time question?! D:
asked Aug 12, 2013 in Other Math Topics by Jules | 732 views
3 answers
if a+b=10 and a-b=6,than find the value of a^2+b^2
asked Jul 27, 2013 in Other Math Topics by Anila | 852 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
732,215 users