Respuesta :

Answer:

I think it's 7=-9 but I can't remember what the term is called because I'm a little rusty, sorry. If you want to know tho, I can find my old notes

Step-by-step explanation:

Answer:

Step-by-step explanation:

6r + 7 = 2r - 9

4r + 7 = -9

4r = -16

r = -4