Answer:
13 friends.
Explanation:
We have been given an equation
, where x represents number of friends at Jessie's party. We are supposed to find the number of Jessie's friends.
Let us solve for x.
![4x+3-3=55-3](https://img.qammunity.org/2020/formulas/mathematics/middle-school/45grtvs4oev8v0natj4zo0kameabaicf2p.png)
![4x=52](https://img.qammunity.org/2020/formulas/mathematics/middle-school/o0uejp6i71epcbwtpanqmzkgy1xoy4fhnc.png)
Divide both sides by 4:
![(4x)/(4)=(52)/(4)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/x7tkknm62hqphe8ezoon5ybia85ynyz0cz.png)
![x=13](https://img.qammunity.org/2020/formulas/mathematics/high-school/teuess3r81jo3yeuxmre7zto0cel38qvnp.png)
Therefore, there were 13 friends at Jessie's birthday party.