solve using the substitution method 5x+8y=24, x=24-4y

i am having trouble with this question
in Other Math Topics by Level 1 User (140 points)

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

line 1...5x +8y =24

line 2...x+4y=24, or 4y=24-x, or 8y=48-2x

line 1...5x +(48-2x)=24

5x-2x+48=24

3x=-24

x=-8

from line2, y=6-(x/4)=6+(8/4)=6+2=8

y=8
by
thank you
by Level 1 User (140 points)

Related questions

1 answer
(3x-5y)(x+4y)+5x^2+13y^2-4xy
asked May 1, 2013 in Statistics Answers by anonymous | 731 views
1 answer
3x – 4y = 3 6x – 8y = 6 solve substitution method
asked Apr 26, 2013 in Algebra 1 Answers by anonymous | 1.6k views
1 answer
if f(x)= x^2 - 14, find f^-1
asked Nov 11, 2013 in Other Math Topics by anonymous | 807 views
2 answers
Mathematics
asked Oct 3, 2013 in Other Math Topics by shunterrica | 671 views
1 answer
(a^n+2)(a^n-7)
asked Aug 25, 2013 in Other Math Topics by SuckmyNick71 Level 1 User (160 points) | 724 views
1 answer
what is the answer to (64t^3/125s^6)^-2/3?
asked Aug 25, 2013 in Other Math Topics by SuckmyNick71 Level 1 User (160 points) | 760 views
1 answer
how do i solve g(f(3))?
asked Jun 13, 2014 in Algebra 1 Answers by anonymous | 757 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
100,285 answers
2,420 comments
734,714 users