Respuesta :
Answer:
1.
Step-by-step explanation:
You combine like terms, which makes the problem 12r - 1 = 11. then you add 1 to both sides and you get 12r = 12. divide 12 by both sides by 12 and get r =1
Answer:
1.
Step-by-step explanation:
You combine like terms, which makes the problem 12r - 1 = 11. then you add 1 to both sides and you get 12r = 12. divide 12 by both sides by 12 and get r =1