Respuesta :

emilyrayo

Answer:

r = 13

Step-by-step explanation:

-3r=-26-13

-3r=-39 divide by 3

r=13

nicotheweeb28

Step-by-step explanation:

13 - 3r = -26

13 − 3r −13 = −26 − 13

−3r=−39

divide by 3

r = 13