elimination method

2x+3y=4

4x+6y=8 please show me how to solve this using the elimination method
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

to use elimination the coefficient in front of either x or y needs to be the same in both equations.  

so if you look at x then you can multiply the 1st equation by 2 so that both equations have 4x

in this case, when you do that, the first equation becomes 4x + 6y = 8 which is exactly the same as the 2nd.  Therefore they are the exact same line so you have an infinite number of solutions
by Level 5 User (11.9k points)

Related questions

1 answer
2x-3y=7,6x+9y=11 solve by elimination method
asked Aug 15, 2014 in Other Math Topics by anonymous | 4.4k views
1 answer
elimination method for x+4y=9 and x-4y=7
asked Jul 25, 2014 in Algebra 1 Answers by anonymous | 1.3k views
1 answer
SOLVE USING ELIMINATION METHOD 7X+5Y=-17,3X-5Y=-43
asked Jul 17, 2014 in Algebra 1 Answers by anonymous | 1.1k views
1 answer
Elimination method x-3y=2,6x+5y=-34
asked May 25, 2014 in Algebra 1 Answers by Victoria | 1.7k views
1 answer
Elimination method 8x+9y=33, x-36y=-330
asked Dec 18, 2013 in Other Math Topics by andijo Level 1 User (140 points) | 716 views
1 answer
elimination method
asked Apr 30, 2013 in Algebra 2 Answers by anonymous | 1.9k views
1 answer
elimination method 3x-4y=3 and 2x+y=13
asked Apr 29, 2013 in Algebra 1 Answers by anonymous | 1.4k views
1 answer
how to solve this using elimination method
asked Apr 24, 2013 in Algebra 2 Answers by anonymous | 688 views
1 answer
3x+9y=11,6x+3y=7xy by elimination method
asked Apr 24, 2013 in Algebra 2 Answers by anonymous | 1.2k views
1 answer
simutaneuos equation by elimination method
asked Mar 13, 2013 in Algebra 2 Answers by nima Level 1 User (160 points) | 616 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
732,292 users