SOLUTION: If the ratio between 8 and 11 is the same as the ratio of 2 x-y to X + 2 Y find the value of 7x/9y. Not able to solve please help.

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Question 1086100: If the ratio between 8 and 11 is the same as the ratio of 2 x-y to X + 2 Y find the value of 7x/9y. Not able to solve please help.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
8%2F11=%282x-y%29%2F%28x%2B2y%29
So then,
8%28x%2B2y%29=11%282x-y%29
8x%2B16y=22x-11y
-14x=-27y
14x=27y
x=%2827%2F14%29y
So then,
%287x%29%2F%289y%29=%287%2827%2F14%29y%29%2F%289y%29
%287x%29%2F%289y%29=%2827%2F2%29%2F%289%29
%287x%29%2F%289y%29=highlight%283%2F2%29