Joy added 26 new contacts to her phone list. She now has a total of 100 contacts. Let c represent how many contacts Joy had on her phone list before she added the new ones. Write an equation and solve for c.
Let c represent how many contacts Joy had on her phone before she updated it. Because Joy added 26 new contacts, we can say that c+26 is equal to her new total of 100 contacts. Now, we can use our equation to solve for c. Therefore, Joy had 74 contacts on her phone before she updated it.
