In m + 8, the variable can have any value.
In m + 8 = 12, the variable m can have any value and be a solution.
![In m 8 the variable can have any valueIn m 8 12 the variable m can have any value and be a solution class=](https://us-static.z-dn.net/files/d03/5bc0ffe1c2da93677b370f6ccc628982.jpg)