SOLUTION: what is the value of (x - y) if
3x-5y=5 and
x
----- =5/7 ?
x+y
Algebra.Com
Question 694485: what is the value of (x - y) if
3x-5y=5 and
x
----- =5/7 ?
x+y
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
You have the system
and the problem asks for the value of
--> --> --> --> -->
Now we can re-write the system as
We can solve that system for and by elimination.
Subtracting the second equation from the first, we get
--> -->
We can then substitute that value for in one of the equations with and to find .
Using , we get --> --> --> --> -->
Substituting the valued found for and , we get
-->
RELATED QUESTIONS
what is the value of y when x=5 and the equation is y= 3x +... (answered by Alan3354)
If x + 4 y = 10 and - x + 5 y = 8 what is the value of 3x -... (answered by Fombitz)
what is the value of x and y
5x + 5y = 16
2x + 2y =... (answered by Alan3354)
what is the value of x and y if 3x+4y=7
(answered by idkweirdo)
if x= 7 what is the value of x-4
if y=3 what is the value of 8y
if x=7 what is the... (answered by Cromlix)
if xyz=4 and y^2z=5, what is the value of... (answered by ovie27)
if xyz=4 and y^2z=5, what is the value of... (answered by london maths tutor,ewatrrr)
What is the solution to 1. y = 3x – 8
y = 4 – x
2. x + y = 0
3x + y = -8
(answered by Alan3354)
IF X PLUS HALF X PLUS Y PLUS HALF Y EQUALS 7, WHAT IS THE VALUE OF X AND... (answered by JulietG)