-3x+y=7 5x=2y=3

solve each system of equation by the substitution method
in Algebra 1 Answers by Level 1 User (120 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

me assume that stuf shood hav ben

line 1: -3x+y=7 or y=3x+7

line 2: 5x-2y=3

line2...5x -2*(3x+7)=3

5x-6x -14=3

-x=3+14=17

x=-17

y=3x+7=7-51=-44
by

Related questions

1 answer
Y=5x-7 -3x-2y=-12
asked Dec 9, 2011 in Pre-Algebra Answers by anonymous | 1.8k views
5 answers
y=3x+8, 5x+2y=5
asked Nov 22, 2011 in Algebra 1 Answers by anonymous | 3.9k views
1 answer
6x-3y+2z,-3x+2y-z,5x+6y-7z in vertical method
asked Jun 27, 2013 in Algebra 1 Answers by anonymous | 930 views
1 answer
Solve system of equation. x+2y=7 and y=5x-2
asked Oct 19, 2012 in Algebra 2 Answers by anonymous | 733 views
1 answer
4x-y=9 N. n 5x+2y=8
asked Mar 5, 2013 in Pre-Algebra Answers by anonymous | 747 views
1 answer
9x - 2y = 30 5x + y = 24
asked Aug 19, 2012 in Trigonometry Answers by anonymous | 1.3k views
1 answer
if 3x+2y=5 and x=7 fimd y?
asked Jun 3, 2013 in Algebra 1 Answers by anonymous | 577 views
1 answer
how to solve 3x = 7 – y and 2y = 14 – 6x
asked Mar 26, 2013 in Algebra 1 Answers by anonymous | 1.3k views
1 answer
3x-2y=-7 y=2x
asked Jan 9, 2012 in Algebra 1 Answers by anonymous | 1.1k views
1 answer
y=5x+7 y=-3x+7
asked Feb 22, 2013 in Algebra 1 Answers by anonymous | 698 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
734,397 users