The situations that can be modeled with an equation are:
1. The sale price of a television is $125 off of the original price.
Let the original price of TV be=x
Sale price =

Let sale price be S so equation is : S=

3. Marco spent twice as much as Owen.
Let Owen spent = x
Then Macro spent = 2x
Let Macro spends $y , So, equation becomes
y = 2x
5. Ben paid a total of $75 for a shirt and a pair of shoes.
Let 'x' represent the cost of a shirt and 'y' represents the cost of a pair of shoes then equation becomes:
