Respuesta :

Answer:

[tex]\boxed{\bold{d - r + c}}[/tex]

Step-by-step explanation:

x - c = d - r

You want to get x by itself

c is with x so get rid of c

Opposite of -c is +3, so add c to both sides

x - c + c = d - r + c

-c + c cancel each other out so now you have x by itself

x = d - r + c