the cost of a pair of shoes is 235.5 dollars
let the watches be represented by W
let the shoes be represented with S
3W + 2S = 2,091.00--------------equ 1
4W + 3S = 2,866.50-------------equ 2
using the elimination method
multiply equ 1 by 4, and equ 2 by 3
12W + 8S = 8364
-12W + 9S = 8599.5
- S = -235.5
the cost of a pair of shoes is 235.5 dollars