SOLUTION: (x-y)(2.75)=45
(x+y)(2.5)=45
Algebra.Com
Question 198411:  (x-y)(2.75)=45
(x+y)(2.5)=45 
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
  (x-y)(2.75)=45
(x+y)(2.5)=45
------------
(x-y)*2.75 = (x+y)*2.5
(x-y)*11 = (x+y)*10
11x-11y = 10x+10y
x = 21y
-----
(21y+y)*2.5 = 45
22y = 18
y = 9/11
----------
x = 189/11 
RELATED QUESTIONS
(y-1)^2/45 -... (answered by ewatrrr)
12^2/5=45^x (answered by stanbon)
y^2+4y=45 (answered by jim_thompson5910)
If x^2 + 3xy + y^2 = 45 and xy - y^2 = 0 find x and... (answered by solver91311)
x^2 - x -... (answered by checkley77)
x ♣ y = x^2 + y^2   If x ♣ y = 45, And x = 3, what is  y... (answered by richwmiller)
x^2+45=-18x (answered by josmiceli)
x^2=45 (answered by asuar010)
10/x + 45/y =... (answered by fcabanski)