Question

Find the value of "r":
6r + 6r + 3 = 15

Answer 1

1

Explanation:

6r+6r+3=15

12r+3=15

12r=15-3

12r=12

r=12/12

r=1

Answer 2

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