13x+7 icecream cones were sold
Step-by-step explanation:
You need to add the total amount of icecream cones sold on each day together. You can do this by creating an equation that looks like this: 7x+15+6x-8
From here, you're going to want to combine like terms, such as the 7x and 6x, as well as the 15 and -8.
With the like terms combined, it would get you an equation of 13x+7, the answer to how many icecream cones were sold altogether
