SOLUTION: 2(6-4d)=25-9d

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Question 364897: 2(6-4d)=25-9d
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
12-8d = 25-9d,
12-25 = -9d+8d,
-13 = -d,
d = 13.