Solve the system by addition

Solve the system by addition

 

2x-5y=2

4x-10y=5
in Algebra 1 Answers by Level 1 User (360 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

Double the first equation: 4x-10y=4; but the second equation is 4x-10y=5.

The same quantity (4x-10y) cannot have two different values (4 and 5) at the same time, so there can be no solution, because 4 is never equal to 5.

by Top Rated User (1.2m points)

Related questions

1 answer
Solve the system by addition
asked Mar 12, 2013 in Algebra 1 Answers by oakptnanny1 Level 1 User (360 points) | 585 views
1 answer
Solve the system by addition
asked Mar 12, 2013 in Algebra 1 Answers by oakptnanny1 Level 1 User (360 points) | 524 views
1 answer
Solve the system by addition
asked Mar 6, 2013 in Algebra 1 Answers by anonymous | 569 views
1 answer
Solve by addition.
asked Mar 10, 2013 in Algebra 1 Answers by oakptnanny1 Level 1 User (360 points) | 575 views
1 answer
I need to solve the system by using the addition method
asked Sep 24, 2019 in Algebra 1 Answers by anonymous | 919 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
731,988 users