
Sanjay S. answered 01/22/15
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Nalia,
This is same as previous problem you posted.
Assume cost is $c to rent a chair and $t to rent a table
3c+5t = 35
6c +2t = 20
Multiply eq 1 by 2
6c + 10 t = 70
Subtract eq 2
8t = 50
t = 6.25
6c + 2*6.25 = 20
C = 1.25