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A party rental company has chairs and tables for rent. The total cost to rent
5
chairs and
3
tables is
$39
. The total cost to rent
2
chairs and
12
tables is
$129
. What is the cost to rent each chair and each table?

Respuesta :

Let x = chairs
Let y = tables

5x+3y=39
2x+12y=129

Then solve using elmination.

(5x+3y=39)2
(2x+12y=129)-5

10x+6y=78
-10x-60y=-645
---------------------
-54y=-567
y=10.5

5x+3y=39
subsitute y and solve for x
5x+3(10.5)=39
5x+32.5=39
5x=6.5
x=1.3

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