0
Best Answer
8
Allan Heller
Lvl 10
∙ 3y agoThis answer is:
More answers
Wiki User
∙ 12y agoI assume you mean,
X + Y = 4
Y - X = - 4
----------------add
2Y = 0
Y = 0
=======find X ( either equation )
X +(0) = 4
X = 4
========check in both equations
4 + 0 = 4
4 = 4
---------checks in first equation
0 - (4) = - 4
- 4 = - 4
----------------checks in both equations and is a consistent system
(4, 0)
---------------solution set
This answer is:
Add your answer:
Earn +20 ptsQ: How many solution does x plus y equals 4 and y -x - 4 have?
Write your answer...
Submit
Still have questions?
Continue Learning about Math & Arithmetic
How many solutions does x plus y equals 4 y equals -x-4?
0
Which of these solutions are acidic a solution with OH equals 2.5 10-9 H plus equals 1.2 10 -4 H plus equals 3.4 10-8 pH equals 4.5 OH equals 1.0 10-4?
solution with [OH-] = 2.5 x 10-9 , A solution with [H+] = 1.2 x 10-4, A solution with pH = 4.5
What is the solution to x plus y equals 8 y equals x?
x=4 y=4
What is the solution for 3x plus y equals -2 y equals -x plus 4?
x = -3, y = 7
X plus y equals 4 and y equals -x-4 have a solution or no solution or an infinite number of solutions?
0
Related questions
How many solutions does 2x plus y equals 5 and 2y plus x equals 4 have?
1 solution
How many solutions does x plus y equals 4 y equals -x-4?
0
What is the solution of 4 plus 2x equals 4?
x = 0
What is the solution to x2 plus 2x equals 410 the solution is between 7 and 8?
The answer is (3.5)2 plus (4)2 equals 410.
What is the solution for the equation -x plus y equals 4 and the equation 2x plus y equals 4?
x = 0 and y = 4
Which of these solutions are acidic a solution with OH equals 2.5 10-9 H plus equals 1.2 10 -4 H plus equals 3.4 10-8 pH equals 4.5 OH equals 1.0 10-4?
solution with [OH-] = 2.5 x 10-9 , A solution with [H+] = 1.2 x 10-4, A solution with pH = 4.5
What is the solution of the system -x plus y equals 4 and x plus y equals 2?
It is (-1, 3).
What is the solution to x plus y equals 8 y equals x?
x=4 y=4
What is the solution of 2x plus 4 equals 8?
x=2
Solve the solution of 5y equals 5x plus 4?
you cant
Is this a no solution 6x - 2y equals 4 -9 plus 3y equals 12?
(x, y) = (3, 7) is a solution.
What is the solution for 3x plus y equals -2 y equals -x plus 4?
x = -3, y = 7
Copyright ©2024 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.