SOLUTION: (x-y)(2.75)=45 (x+y)(2.5)=45

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Question 198411: (x-y)(2.75)=45
(x+y)(2.5)=45
Answer by Alan3354(69443) About Me  (Show Source):
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(x-y)(2.75)=45
(x+y)(2.5)=45
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(x-y)*2.75 = (x+y)*2.5
(x-y)*11 = (x+y)*10
11x-11y = 10x+10y
x = 21y
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(21y+y)*2.5 = 45
22y = 18
y = 9/11
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x = 189/11