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Posted by **TUHITUHI** on Monday, October 1, 2012 at 10:22am.

- math -
**Anonymous**, Monday, October 1, 2012 at 10:56amlet the no. be x and y...

x - y = 7.........i

1/3 x- 1/4 y =7..........ii

eq ii x 12

4x - 3y = 84.....iii

subtracting i and iii

y=40

substituting in any eq x=51

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