A dog buries 4 new bones in her backyard. If b represents the number of bones the dog previously had buried, write an expression for the new amount of buried bones.

Step-by-step explanation:

Before, we had b bones.  Now, we have four more, so .

the equivalent expression are always the hardest ones but you look at the gcf also

step-by-step explanation:

x-3y=4

step-by-step e