Respuesta :

erumbaig05
First add like terms:

12r + 3 = 15

Second, put variables on side and constants on the other:

12r = 12

Finally divide by 12 on sides

r = 1
Yang100

Answer:

1

Step-by-step explanation:

6r+6r+3=15

12r+3=15

12r=15-3

12r=12

r=12/12

r=1

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