Aparty rental company has chairs and tables for rent. the total cost to rent
3
chairs and
2
tables is
$24
. the total cost to rent
8
chairs and
4
tables is
$53
. what is the cost to rent each chair and each table?

Let's assume 
rent of the one chair = x
rent of the one table = y

3x + 2y = 24
8x + 4y = 53

multiply the first equation by 2
6x + 4y = 48
8x + 4y = 53

if we subtract from last equation to previous equation,
2x = 5
x = 2.5

y = 8.25

Therefore the cost of one chair is 2.5 dollars
the cost of one table is 8.25 dollars

Ithink if im not mistaking b is -3 but im not a 100% sude